Pimp My Filter #6 - Juwel Bioflow Internal Filter (all models) 

Biogravel (plus links to worldwide suppliers): www.filterpro.co.uk Juwel filter on Amazon (wrong item title): geni.us/eJ2DPG Juwel Bioflow information (Juwel site): bit.ly/2HJAEB3 Small mesh bags for media: geni.us/DtoexHC Taking a look at the Juwel internal aquarium filter. This one is size 'M' and as far as I can tell it is also known as 'Compact' and '3.0' - the actual name of it isn't too important though as all the Juwel internal filters work the same way. Water flows down from top to bottom through a series of foams and media (optional) and the bottom part of the filter (media part) is designed to have a much slower flow - JUWEL ACTUALLY MENTION ANAEROBIC BACTERIA WHEN DESCRIBING THIS PART.......WOW. This series of videos is all about trying to squeeze more efficiency out of internal and external aquarium filters which generally have a limited filtering capacity - If you have a filter you'd like me to feature in a video then please contact me on: sales@filterpro.co.uk 07772848730 (Richard) Anyone who sends a filter will have it upgraded and returned to them for free and the only cost you will pay is how much it costs to ship it to me - I'm helping to boost your filter and the resulting videos will hopefully be useful to viewers all over the world so it's a win/win. *Please do not send any filters without contacting me first as I want to try and cover every type of filter, not 20 of the same make and model* Due to the high international shipping cost I am currently only taking filters from the UK but I'm hoping that as this series progresses a useful database of knowledge will be built up which will help viewers understand how their filters work, the limitations and the steps you could take to improve filtering capacity and efficiency. The goal with any filter is to try and achieve FULL CYCLE filtration which is the reduction in ammonia, nitrite AND nitrate - if you look anywhere online you'll see people tell you that the nitrogen cycle in an aquarium ends with the production of nitrate which is removed by regular (often large) water changes. That is HALF the cycle and is done by AEROBIC bacteria which favors highly oxygenated conditions and is very easy to grow on any surface. The last part of the cycle (reduction in nitrate) is completed by ANAEROBIC bacteria which favors an environment which is very low or devoid of oxygen. It takes filter media with a very specific internal structure to support both aerobic and anaerobic bacteria to allow for full cycle filtration but a suitably sized, well set up filter, will allow the full cycle to complete which results in more stable water conditions and less water changes (typically 10% every 1-2 weeks). Canister filters will generally offer the best provision for filter media but even internals can be significantly improved to boost water quality and fish health. The following videos will be useful to anyone interested in learning more about filtration, bacteria and making the conditions for your fish as good as possible: Sizing a canister properly and filter set up: goo.gl/om19un Looking INSIDE different filter media: goo.gl/hZWS6c Bacteria and filter media: goo.gl/123gAF How to clean an aquarium: goo.gl/bPMhvh Aquarium tips / filtration playlist: goo.gl/pXgqVj Check out my channel for hundreds of videos on a wide range of my hobbies - many of the videos have educational content so if you have enjoyed any give them the thumbs up and share anywhere you think others may benefit from viewing. This channel is purely a hobby for me so I will never ask viewers to donate money for any of my projects or charge anyone for information - information should be shared freely and I certainly don't consider myself an 'expert' in anything I pursue as a hobby so please do your own research, never accept anything as 'fact', reject anyone claiming to be some sort of authority or 'expert' and make your own minds up about anything you wish to study. We all are on a long path of learning......... If you've enjoyed this video please check out the playlists on my channel for hundreds more - on a variety of subjects. Feel free to share or link any of my videos on facebook, twitter, forums etc. for the benefit of anyone you think may also enjoy watching. See you next time. Pondguru RECOMMENDED PRODUCTS ON AMAZON.com: goo.gl/jMaBWy INSTAGRAM: instagram.com/pondguru_outdoors/ FILMING EQUIPMENT: Panasonic HC-VX870 HD camcorder geni.us/3UwE +Rode stereo microphone: geni.us/4OL +Rode 'deadcat' mic cover: geni.us/1pmn JVC Everio quad proof HD camcorder: geni.us/e09e +Rode 'deadcat' mic cover (opened up and held between tripod and camera base) geni.us/dee24 Zomei Z666 tripod: geni.us/1a1af3 Manfrotto MTPIXI-B PIXI mini tripod: geni.us/87f7

Hi there, many thanks for the informative an usefull video. For many weeks we had problems to clear up the water of our tank. Two days ago, we changed our Bioflow M in a 125 l tank according to your suggestion. Now the lower part contains only 1 kg of ceramic-tubes as a bio-filtermedium, whereas the uppper part goes from grossly to fine with the delivered Juwel-sponges. No carbon sponge, no nitrate sponge etc. What should i say... within two days we got cristal clear water in our tank. Fantastic! Many thanks!!

Modified mine this morning working better already wish I had of found these videos sooner getting much better flow through my pump and fish are more active Thankyou so much for your help 👍👍

Absaloutey love these videos. He explains everything so well and easy to understand unlike some of these videos, where they think everyone is an expert. Keep up the good work, it's appreciated

I use Juwel internal filters for last 16 years. Current Bioflow M came with new Juwel Rio 240 and ran for last 10 years non stop. Most of that time my tank was mainly platies, 100+ adults plus fly, moving 50 or so of them every 6 months to local aqua shop. On the bottom I use Matrix Seachem biomedia, was removed only once 5 years ago when moving house. On top I use original sponges and filter wool on the top. I rince my wool once every few weeks, and very lightly rince sponges every 1-2 years. It worked perfectly for m with very little maintenance for over a decade, I am horrified to see how often and how much maintenance people do on same size/stock tanks with external filters that have wool media on the bottom rather than top of their system

Hi, great and very informative video. I have this filter and have struggled with Nitrate. I will be change in the as per your recommendations asap. Can you let me know how many of the bags of biogravel I will require in total so I can place an order please. May thanks in advance. Denver.

Hey why not use the white cheap filter at the top to take most of the dirt? instead you're using the blue one so they getall the dirt. they are harder to get clean. and more xepensive right? =)

I have one of these in my tank and after watching this I am changing the set up now 😃. Thanks 👍👍👍👍👍

Rio 350 - Removed all the Juwel stuff and put in a big bag of little bio tubes and put a bunch of cotton wool like filter on top. Worked a treat for the 9 years I had the tank. Replaced the cotton wool filter bi weekly and rinsed out the tubes once every 6 months in a buck of tank water. No diseases, happy fish, easy care and very happy wallet!

Where can i get these bags of media from please to fit the same filter,and also how often do i have to change them and the pads? Thanks

Managed to stuff 2 kilos of Biohome plus in this filter! Didn't use the included sponges and went for the exact same course, medium and fine layers one top as demonstrated in the majority of the videos on this channel, which I also purchased from Biohome. I bought a box of Juwel's Cirax which came in one of those trays that fits this filter and took off the lid, emptied it and put it upside down in the bottom of the filter, so there's still a void on the bottom underneath the biomedia. Poured about 1,5 kg Biohome plus directly on top of it, didn't use the filter tray that came with the filter. For the top half I did use the other included tray, putting in a mesh bag with the other half kg of media, and the pad and foams on top. Really pleased with it! Decent filter volume, very silent and sufficient flow for the 180 litre Juwel Rio tank. I removed the filter before starting up the aquarium, wanted to give everything a good clean. Juwel applied a lot of silicone to mount the filter, removed it all and put one blob of Juwel Conexo on the side, one on the back, and put a leftover kitchen tile underneath. When it's time to give the filter a rinse, I can now easily remove the entire unit and reapply some Conexo to put it back again. Thanks Richard for your very informative videos, they helped me a lot to keep my aquarium nice and healthy, and my fish happy! Cheers ;)

Just ordered some biogravel and small bags to pimp my Juwel BioFlow :O)

Their pads are way too thick, so i ordered my own, a coarse, medium and real fine foam sheets, all together they are only about the thickness off one and a bit of the Juwel pads, the rest is ALL media with one spare cage that i use for what ever i need etc. PS If you use the cages you can open them and add more media as the cages are only half full.

Hey PondGuru! So I changed my biorb with your video and right now it's doing great, but now I've tried this video as well for my Juwel Lido 200 Led, but the fine pad under the medium and coarse pads still gets dirty very fast... will this change or not? Because it's more work to take everything out and clean it instead of just leaving it on top and taking the fine pad out... Thanks! Sasha

Had mine for years and did wonder about the logic of a fine filter at the top. I will be pimping my filter at the next clean. Many thanks

How about an under gravel filter? Can you make a video about that too please Thanks

I disagree with gravel in the upper portion. The reason they split this in the first place is to enable 2 zones: one where bacteria eat oxygen (the upper one) and one where they eat nitrites) lower one. it's supposedly designed in a way to have higher pressure in the upper portion, that is more oxygen there, while in the lower - lower pressure, lower oxygen levels, so that bacteria will start eating NO3 instead of O2, which will help with water balance. Also the pad should be on top for a very simple reason: so that you would not need to clean sponges that often. Why? Because bacteria are meant to live there and more often you have to clean them - the less bacteria. It's called Bioflow because it's filtering not so much mechanically (although, that too), but more biologically. The bottom part should be filled with any finer foams or gravel, though, yes, specifically to create anaerobic zone.

How often should the gravel media in the bottom be cleaned or changed?

I also like to add to this very good informative info from the Guru ,, Ive just added the 1000L Pump juwel make for this filter and it makes the world of differnece combined with a juwel skimmer water is crystal clear and the Bio is working very effectivly ...

Juwel have tested their set ups for a long time and have done the water chemistry and fluid dynamics science to verify it all works as designed. They have also designed in cleaning intervals for each media type. There are lots of factors involved in designing filter systems - pump size and water flow rates are critical to ensuring the different types of bacteria can do their job. ie some require slow flow rates to work and some work ok with higher flow rates. Putting extra media in over design spec will affect the flow rates through the entire system, this hasnt been accounted for, restrictions in flow will also affect overall water circulation in the tank itself, therefore there is some risk to moving away from the design spec`.

Great video, and it makes sense the filtration system should go from large holes to small. The large holes catch the crap and debris (the green nitrate filter), and the progressively smaller holes (blue sponges) ending with the fine white pads filter out the rest. With the white pads on top the filtration will be in an area of maybe 300 square cms before they clog up and block the flow. Use the pads as suggested and the filtration is over something like 4,700 square cms.

What would you do with the Fluval fx6

You don't need the carbon filter normally. Only after using medicals to remove them. In an healthy fish tank carbon has negative effects.

Thank you so much for this. Setting up a new tank and I was very worried about this filter. Great to know what to do!

Thank you! This makes so much sense! White pad lower! Of course! I've been keeping fish in our Juwel tank for 20 years... Why did I not know this already?!! Thank you 👍

Thank you for letting me know the carbon foams don’t work!

When do you change the bio gravel?

3:53 I respectfully disagree with this being a problem. In the past I've been always using the order you've suggested, and the sponges need to be washed every 2-3 weeks. You're right in saying that with the cotton on top it needs to be replaced more frequently, but it only takes a minute to cut the right size, open the lid, pick the dirty cotton and put in the new piece. I much rather change it once a week than wash sponges once a month. Price vise it's not an issue, because a 1.2 m by 1.2 m sheet of thic cotton can be bought for about £8 and it's enough for 100 changes (lasting over a year), and I wouldn't be supprosed if thanks to having the cotton on top I can replace sponges less frequently (these included get smaller after being washed a dozen times and no longer fit tight).

What was the screaming clip at end ? 😂

Can I just clarify as I am a beginner and read a lot and have read if placing chemical filtration before the biological media, bacteria is less likely to thrive in the biological filter media? So can the chemical filtration pad be at the last stage of this filter to ensure the bacterial colonies are not affected? I just want my filter to be perfect and your youtube videos are a godsend but just want to be sure, or because this is a carbon activated pad, does it really matter? Please let me know as I will be setting this up exactly as you say but just want to clarify for my learning to be sure about the chemical before biological please.

My juwel rio 450 started to leak and as a result I have lost all my fish. I have purchased the aquarium from charterhouse aquatics and it has only lasted 4 years. Has anyone else had any issues with their juwel leaking?

I think people probably buy the brand ones as brands will warn you, if you you don’t buy there brand ones then they won’t cover the warrenty which is naughty and some say ours are better blah blah

Great video. Can anyone tell me how often I should clean / replace the sponges?

I have the Juwel Rio 300 with the larger Juwel filter. I have converted this so that it is used as a pre-filter for my Eheim professional 3. The result is a maximum of 10 ppm nitrate in an aquarium with an Oscar, a Severum and Jack Dempsey.

By the way the chamber behind the pump is for your heater to drop into

Can't stand the bioflow 3.o in my new 180L seriously worth taking out and replacing with an external canister so many design flaws

Heard about you from others, and now i see why, we say and we put together the filters in almost the exactly the same way to get the full capacity out of them. But you are missing one... The best one that still has not been beaten in 30 years. The 65 w Eheim Classi XXL, the big emty barrel. Please do a video on that, I forgot to film when I setup mine. :-) Great tips, and finally someone that brings up Juwel!!! America needs Juwel. The Fluval 3.o lighting is less strong then the 2.0. Juwel had an equally strong light, but only cold white and blue leds, While Juwel made theirs stronger 65w and full spectrum. that the Fluval 2.0 had. Fluval made more gadgets, but weaker lights that just consums more energy. So everybodu should buy Juwel Helialux Spectrum not the Fluval 3.0. I have a video comparing Juwel Helialux (1). vs Fluval 2.0, I would like to do a video about Fluval 3.0 vs Juwel Helilux Spectrum (2.0) Amazing Videos. Very clear and easy for people to understand. Subbed of course!

An empty aquarium with a filter without filter media can break down at least the same amount of ammoniacal nitrogen as an aquarium with a handful of high-quality filter media (Seachem Matrix alias pumice) in 24 hours. The use of filter media in the filter is most likely unnecessary (at least in terms of nitrification) in a planted aquarium with a reasonable fish stock. To break down such an extreme concentration of ammoniacal nitrogen as 30 ppm NH3/NH4+ virtually zero filter media is needed. This means that even the minimal amount of nitrifying bacteria that can be produced on ordinary surfaces inside an aquarium, in hoses or in an empty filter, is enough to break down virtually any amount of ammoniacal nitrogen that could occur in a normal planted aquarium. To say that there may be so-called "peaks" or mini-cycles in the aquarium, during which there is a local, short-term or sudden increase in the concentration of ammoniacal nitrogen, which can lead to the germination and subsequent proliferation of algae, are (given the enormous nitrification capacity of the empty aquarium) most likely nonsense. It can be assumed that even some reasonably large increase in ammonia concentration (e.g. dead fish decaying somewhere unnoticed) may not pose any problem for an already established colony of nitrifying bacteria, especially considering that even in an empty aquarium (with a filter without filter media) it can arise a large enough colony of nitrifying bacteria to break down an incredible 30 ppm of NH3/NH4+ in 24 hours. So why should an aquarist have an oversized filter when an empty aquarium (without filter media, substrate, plants, and other potential areas for bacteria) can host such a "huge" amount of nitrifying bacteria that there is a reserve for at least 30 ppm of NH3/NH4+? Or does anyone find such a reserve inadequate? Alternatively, a 275 mℓ of Seachem Matrix media (or the same amount of ordinary pumice) provides a nitrification capacity for no more than 30 ppm NH3/NH4+. An empty aquarium represents a nitrification capacity to break down at least 30 ppm NH3/NH4+ Is there anyone who sees any difference between these 30 vs 30 ppm? For an idea of how much ammoniacal nitrogen is generated from 2 g of fish food, which is the recommended feed dose for 100pcs of adult (2 inches [5 cm] long) Neon Tetra in 25G (100ℓ) aquarium: Aquarium volume: 25G (100ℓ) Fish weight in aquarium: 185 g (100pcs * 1.85g) Daily feed dose: ~2 g (= 1% of body weight) Protein content in fish feed: 23% Nitrogen content in proteins: 16% Calculation formula: Amount of NH3 (g) = g feed * (% protein in feed / 100) * (% N in protein / 100) * (% waste N / 100) * (1.216 NH3 / 1 N) Calculation: 2 * (23/100) * (16/100) * (61/100) * (1.216/1) = 2 * 0.23 * 0.16 * 0.61 * 1.216 = 0.055 g NH3 100 pieces of Neon Tetra fed daily by 2 g of feed produce less than 0.055 g = 55 mg NH3 every day, which when dissolved in 25G (100ℓ) aquarium is 0.55 ppm NH3. This means that in an empty 100ℓ aquarium there are so many nitrifying bacteria that it would not be a problem for them to break down ammonia from 5,454 pcs of adult Neon Tetra (or 10 kg of well fed fish). The importance of filtration (or filter media) appears to be overestimated (at least in terms of nitrification). It is also quite possible that many filters may increase ammonium concentration in the aquarium rather than reduce it effectively. Some filters may function as "traps" and producers rather than "degraders" of organic waste. A high concentration of ammoniacal nitrogen results in an increase in nitrite concentration, which is converted by bacteria into nitrates. Consequently, with high production of ammoniacal nitrogen, nitrates will accumulate to a large extent in the aquarium (up to 76 ppm of NO2- followed by 103 ppm of NO3- can be theoretically generated in the aquarium from 30 ppm NH4+). High nitrate concentrations (>150 ppm) may lead to inhibition (collapse) of nitrification. Therefore, in order to avoid nitrification decline or interruption at high nitrate concentrations, it is important to change water regularly when cycling the aquarium. Filtration has several functions, of which nitrification (the biological conversion of ammoniacal nitrogen to nitrites and subsequently to nitrates) is only one of them. Regarding nitrification, it seems to be proven that filtration (or filter media) is superfluous in a normal, well-functioning planted aquarium. However, filtration may have other useful functions in the aquarium, such as mechanical removal of fine particles from water, chemical absorption and adsorption of harmful molecules into the resin or other filter media, or biological (microbial) decomposition of complex organic compounds into simpler compounds or elements (nutrients) → so-called mineralization. Whether the different types of aquarium filtration actually help in the mineralization itself (i.e. in the conversion of complex organic compounds into simple inorganic plant nutrients) remains to be verified. The experience of many aquarists suggests that some types of filters may act rather as organic waste producers in the aquarium instead of water purifiers. The filters compete with plants because some nutrients can often precipitate in them (most often iron and phosphorus). In addition, some filter media will soon become clogged with organic detritus or inorganic precipitates, and anaerobic decomposition will begin to occur with all the negative consequences (e.g. production of toxic compounds). This also leads to disruption of mineralization and begining of humification, the products of which are mainly hard-to-decompose humins, humic acids and fulvic acids. Increased concentrations of dissolved organic matter in the water can then promote the growth of some algae. The most effective filter medium in the degradation of ammonia (nitrification) has proved to be an ordinary foam filter called sponge filter. "Experiments: Nitrification - myths vs. facts" Marcel Goliaš © 2019

I have this filter in the juwel Rio 180. After some trials I found filling the bottom cartridge with fluval biomax media and putting the juwel carbax in the top cartridge with 2 blue sponges & the white fine pad on top works best. Amonia 0 nitrite 0 nitrate 0. But without the carbax it gets cloudy, so juwel carbax is highly recommended

I made exactly what u did without even watching this video :D just without carbon layer. They really are stupid or arrogant in factory. Not mention i got this filter installes in 240L juwel tank.

Great advice, I have just subscribed, thank You so much. How often do you replace the bio media? Or do you just rinse the bags of debris in the fish water when you change it?

Great video a lot of info, thanks for sharing.

Pretty slick design really for a canister filter. It’s basically a wier with built in powerhead. You get deep water draw and surface skimming. Regardless of media setup this would likely have much better nitrate reduction then most canisters no matter media because of the surface skimming allowing for nutrients to be sucked up before decomposing. This is likely why the floss was on top to act much like a low micron filter sock needing to be replaced every few days before organic decomposition occurs. Less ammonia means less nitrates.

Whoever owns that filter has it set up wrong. Lower section should be a sealed carbon filter. The ceramic media is supposed to be in the centre, and the sponge media should be at the top. I have the exact same filter in my tank and it works fine.

Excellent advice! May I ask your opinion about changing the filterpump to either smaller volumes (500 l/hr) or larger volumes (1000 l/hr)? Do you have any experience how smaller/larger waterflow affects the filter performance?

I got 2kg of biogravel in. 1.5kg in the bottom and a bag of 500g in the bottom of the top section then ontop of that a carbon then fine medium coarse. Used thinner sponges than what came with the filter a coarse and medium together are as thick as 1 jewel foam which gives more room for biogravel

That's how you turn a shitty set-up into something effective. Great job.

Very informative. Thank you. I would love a follow up video on this filter/solution. What does the costumer think? Does it work? Greetings from Denmark

So the manufacturers want to make money rather than help the animals in the tanks.

I ripped it out . Waste of space. Run a cannister underneath

I brought all the juwel optional media's, partly so I could get their cages... How often do you change the gravel media that you put in? Juwel sell all their different media's, carbax, cirax, phorax, and amorax, does the gravel that you put work in multiple ways like these separate ones?

Pondguru, you're an AquariumFilter GOD! #AQUARIUMGOAT thanks for this awesome guide! 👍🏻👍🏻👍🏻

Just picked up on this. I’ve had an issue with very low water flow. Pump working fine outside the aquarium. I’ve now ordered some gravel bags, but until they come I’ve re-ordered the pads in my top- frame and the water’s running like a dream. Thanks for the great videos - they’re really helpful and I love the way you explain things. 👍

I wish I had seen this sooner, amazing information, thanks so much.

This confirms my suspicions, the setup made no sense to me as it came out of the box, many thanks.

I ordered mini ultimate bio balls 1kg and managed to fit lava rock on top in one big mesh bag. Got it packed in nicely the way sponges were set up put an extra course foam on top off the one that comes with this. Just cut it too size. Is running great.

The fine pad serves as a pre-filter so that the next two sponges will not have to be attended to within three months. And the two fine pads only after nine months. At least that's their claim. No reason to stick with juwel white pads.

Hi, this might sound stupid! but I've just got a 125l tank with this filter built in. I didn't no it come with it. The tank is going to be for my turtle, so it can only be filled half way. Am I going to be able to use the filter? If not. can I take it off the tank. I'm waiting to pick it up from the shop.

I have this filter and I hate it. Why did they make the suction hole in the middle?! It reduces the flow in the lower half of the filter (where the biomedia is!) by half of what it is in the upper half. Also a 600l/hour pump in 180l tank?! I had to replace it with 1000l/hour pump.. What did they think of.. :-(

I have a Juwel Primo 110 tank with the smallest version of the Bioflow filter and want to set it up a little different. I want to fill the lower part with bio-media, but I will put the fine pad on it to protect the bio-media from muck. In the upper part I will use a medium and coarse foam, but beyond that I want to use ceramic rings as the first mechanical stage. But you missed an interesting feature of this filter. You can remove the plate in the middle of the box and under the pump is more space for mechanical filtration. I want to use this to place more ceramic rings where the slits come in from the side.

I was pretty sure the juwel set up was wrong, and this video has confirmed my thoughts. Since having a juwel filter my tank ( with carp) has been a mass of blanket weed. And, when i clean the filter the only part that is catching any dirt is the top layer of fine media. Now i can see that it needs arranging the other way up!!! Thankyou.

I'm planning to get a Juwel Rio 240 later this year and I'm definitely replacing parts of the filter material with biological medium! And I also might leave out the active carbon pad since apparently active carbon also removes nutrients. Active carbon gets saturated after a little while anyway so it isn't any use on the long term. Active carbon is very useful if you need to remove something bad from the tank or after treatment with medication.

The slots in the inner side of the filter must be free. U take to much Biohome in there! The dual flow principle is no longer given. Thus only 3 large filter media go per filter basket.

At last conformation of the water flow in these filters. I had moved the coarse filters to the top but needed to confirm where the white fine pads should sit. Even the Juwel diagram in the pack of replacement white filter pads shows them fitted at the top. I have actually now fitted the white pad sandwiched between two thin fine blue pads at the bottom of the top stack with a full size medium and coarse one above it.

Wow. Another great informative video, hmm the logic of a fine filter pad 1st makes little sense from the manufacturer other than increased sales. Great to see the changed order of filtration, was thinking one layer of ceramic noodles on bottom bag.

Thank you for the video. I’ve just ordered the Biogravel and bags from your website.

I have my filter set up like this now, thanks. If I was going to add purigen, where would be the best place to put it?

What size bags do i need for a medium size jewel filter please and how much biogravel?

ordered 5 bags bio gravel love this video

excellent video, as always! set mine up just like you recommend, it would be interesting to see how effective the optional extras are or ineffective :) they have so many add on's like cirax phorax etc

Sorry, I disagree there. Yes, the white pad will clog up sooner when on top. But you shouldn't use it in the first place. Get some filter "wool" instead. You put that on top and check it every week. Once it gets too dirty you pull it out and replace it with new "wool". That stuff is the cheapest material and that way your other filter medium doesn't clog up. Because otherwise all your sponges will clog up and those sponges can hold very important bacteria.

If I put that pillow filler stuff in top that I take out every 3 or 4 days does that work or is not enough getting in? I've done it the way you said and it is unbelievable, just really easy to take that top bit of "fluff' out? I wish you could send to Ireland😢😢😢😢

Thanks for the video. One question, how long does the bio media last before replacing?

This would be ok for the 260ltr version? How often does the substrate need changing?

I GOT OTHIS FILTER installed in 240L aqual akvarium.. :D fully pumped with spunches :D Now thats what i call a FAAIL

Is it possible to change pump version 600l/h for 1500l/h in rio 240 led

At last! Someone that knows what he's doing. Well done on an informative video. I redo my filters as a rule. I normally use my own setup order, similar to yours.

A store local to me was using one of these in a discus breeding tank and it seemed to be working ok. I was temped to switch to one (maybe 2) in my 250L community tank, because of the leak risks from the canister in the living room. I'd take out most of the foams and use 80% bio media.

Can I use this filter set up for Malawi?

Thank you so much just set up my new filter just as you said your advice is invaluable.

Your explanation on all video´s I´ve seen is just great! Spot on, to the point and honest. Thanks for your help.

Can somebody please tell me what is the best filter media for this particular model. Gravel or ceramic rings...and the best type of each?

Hi! I have a Juwel Bioflow Super 500 Internal Filter. The thing is i dont have two ''holders'' for the sponges. I only have one and the sponges are placed vertical instead of horizontal(My filter is quite a bit slimmer than the one on the video, so the sponges wouldnt fit horizontally anyway). And i only have the green Nitrate sponge, Fine material, Carbon and a blue medium sponge. So how should my order be? The current order i have for now (the tank is not setup yet, no water or fish inside) Green Nitrate sponge (you said that its basically a coarse so i went with that on the top) then the fine material on top of the carbon and a medium at the bottom, since you said one shouldnt have the carbon at the bottom. There is no room for media by the looks of it, there is only a small gap (maybe 2-3cm) in the top section of the holder. So is my current order the optimal one?

I’d be blanking them bottom inlets off and just having it go over the surface skimmer

The fine filter at the top was stupidly rank on my Rio 125. I had some spare aquaone ceramic noodles which i substituted in its place to take up the remaining volume.

@Pondgury or others. It says for all Juwel Internal filters. But the 110 is different. It's smaller, the Bioflow Super. What would be the best setup for this one?

what size of aquarium will this service ... how many litres? i mite change to internal filters for my 350 ltr tank

Very nice. Always wondered how I could maximize my Juwel filter. Question though, why would you use the carbon filter? Normally there wont be need for them, right?

THANK YOU! I've just bought a Juwel 350 and was perplexed as to why they set it up how they did! I suppose it's perfect if you want to sell more pads and foams 😉 At least now I can use my proper media and be happy it will work

Great video which inspired me to fill up the lower half of the filter with Seachem Matrox and a small bag of Purigen at the bottom. In my opinion though, having a fine (one biopad or cheaper SuperFish filter wool) mechanical filter on top of the stack is convenient as I can replace this once a week without having to take out the upper stack. Also I temporarily have two Nitrax (green spunges) on top as I am going through the nitrate peak in a new Juwel 450 tank. I don't think Juwel decided to put the mechanical filter on top just to rip us off, the idea is to keep the biological filters underneath clean so they last longer...

I have this filter in my jewel rio 125L. Tanks been running for a couple years now. It's got the standard filters as per manufacturers set up. If I was to set up the filters like you have would you recommend changing them one at time to avoid a cycle crash? Thanks in advance

😂

There is also a big empty space under the pump that you can fill with media. I put ceramic into mine, straight into the space under the pump.

I'm late to the game here but this filter is now being sold with the rio 240, how would you combat this? Add a small external as extra? I'm not sure how to proceed here

Hi , thanks for the videos .I'm currently running two fx4s and a eheim 3t on a African cichlid tank with about 22 peacocks and I'm thinking of replacing all the filters with the XL version of this filter and putting all the media from these filters in that and upgrading to the 1500 lh pump .what you think can I make it work?

Very good advice. I’ve had a Jewel Rio for 20 odd years and never knew how to set up the filter properly!! Thanks x

Hi. I am having an issue getting the water clear. The set up was last used over last winter and all worked well then. My question is : Is the front section and the pump pipe suppose to be a sealed section. Therefore the only way water can in this area is via the front grill at the top and the slots from the pump container flowing into the front conatiner. I tried to siphoned the front section. However, it seemed to be refilling from the bottom hole of the pump pipe. The tank was only about half full. I hope my explanation and question makes sense. Cheers Drew

Pls hack Dophin TF300 corner internal filter

Hi can anyone give me some advice I have a jewel rio 180 fish tank the pump is working but the white filter I used to change weekly has stopped dirtying up

how many kilos do you get in Jewel 3.0 and what a product for fresh water