Aquaponics System | Nitrite Spike - A Design Flaw & How to Fix It 👍🐟

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G'Day folks. I noticed a steady rise in the nitrite in the aquaponics system over the past week. I've included an explanation on what caused it & how to rectify it so you folks don't have the same issue with your own build. Am sure it will help those out that encounter the same issue with their system. 👍
Hope you enjoy this clip helps you with your own design.
Cheers all. 🐟 🌱🍅
Rob
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#AquaponicsSystem #NitriteSpike #BioFilter

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18 сен 2024

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Комментарии : 120

@RobsAquaponics 4 года назад

Don't forget to click the subscribe button if you found the video helpful, bit.ly/Subscribe2Rob and share the clip around with family & friends if you think it will help them too. 🐟 🌱🍅 Cheers all & have a top one. 😊 Rob

@AdamTait-hy2qh 4 года назад

I should send you my research thesis on freshwater bioreactors. It is reviewed and graded now. Great video once again.

@RobsAquaponics 4 года назад

Would definitely be interested mate. 👍😁 Hope you got a decent grade.

@8Jory 4 года назад

Pillow stuffing, dish scrubbies, lava rock, large size washed perlite, or even pool filter sand if used right are good cheap alternatives for high surface area biofilter media. If you can spread the outflow from the radial filter into a sort of "rain shower head" so that it wets all the media, you'll get more bioactivity from the media since it will all be continuously wet. That way you could stuff that bucket in the sump practically to the rim with media. Just coming at this from the aquarist side of things.

@RobsAquaponics 4 года назад

At the moment there's shade cloth in there & that was doing fine until I started adding 80g/2.8oz of 40% protein feed in a day. I've seen hatcheries that use a similar filter system where they use massive tanks filled with netting & shade cloth to act as both solids & bio filters. 👍 I have the PE03 so that's why I'll be running with that in my builds. 👍👍

@8Jory 4 года назад

@@RobsAquaponics I figured you would likely use what you have already. (No sense buying new stuff when you have something perfectly good) more just saying it for future projects, or others that are in the same boat as me trying to do this as budget friendly as possible. Cheers either way! It's been forever since I've commented, but I've been a sub since all the way back when you had your blue barrel-ponics going. Keep up the good work! Edited to change "barrel phonics" back to "barrel-ponics" thanks autocorrect...

@jamesridley184 4 года назад

Definitely another ball game when your a commercial fish farmer so much changing technology out Thier that costs heaps of $$$ going well Rob your a I speciation mate

@davidhughes473 4 года назад

Hi Rob, another great video. My suggestion is to go with option 2 - put in another barrel for a bio filter after the radial flow filter. I know you have to move some things around but would be best option. I did and never had another problem with the nitrates/nitrates and ammonia, best thing I ever did. Dave from Adelaide

@RobsAquaponics 4 года назад

Hi Dave. Will be doing the in sump version first as I think it will do the job just fine. It will also help others out that don't have the room for a second large drum in their setup. Hope the systems doing well mate. 👍👍

@FishmanEricRussell 4 года назад

Love the look of your system. I would suggest not disturbing the bio bed when you clean the matten prefilter to avoid getting spikes. One other point is nitrite is far more toxic at higher a pH. Marine salt will raise your pH if you add enough. Might be a good idea to keep an eye on that. Thanks for sharing your experiences

@RobsAquaponics 4 года назад

Cheers mate. 👍👍

@StaceyHerewegrowagain 4 года назад

Great video Rob! I'd love to try aquaponics out one day. Thanks for sharing and explaining the issue your experiencing. I hear of this happening a lot with nitrates and ammonia

@RobsAquaponics 4 года назад

Am glad you enjoyed it Stacey. 👍👍 Hope to have a lot of the info in a download by the end of the year. Cheers.

@jlgibbens89 4 года назад

Keep up the good work Rob!

@RobsAquaponics 4 года назад

Thanks mate. 👍 Have a top one.

@caribecastaway6447 4 года назад

Great video. Very instructive & packed with info. I didn't understand why you took the bio filter out of the system to begin with. Thanks for your continued work. I agree about the type of beds.

@RobsAquaponics 4 года назад

Wasn't enough room where the system is currently set up (+ it gave me an opportunity to make a clip like this 😉😁). Cheers CC & have a top one.

@twafoster 4 года назад

Just an idea for you. What about using the air-stone inside the fish tank and some large diameter pipe to come up with an in-tank moving bed biorector? Would sure look cool.

@RobsAquaponics 4 года назад

Have seen folks do something similar in smaller systems, much like the in tank aquarium setups. 👍 Would rather have it set up outside in my system for now but it might be something I play around with in the future.

@suchdevelopments 4 года назад

Thanks for information ℹ on aquaponic systems and what you have to do to prevent a spike in nitrite. I am from Lismore NSW on the north coast of NSW.

@RobsAquaponics 4 года назад

Hope it helps you out with your own system 👍

@Javinkay 4 года назад

Great video thanks for sharing I finally bought a pump and a filter for my future system

@RobsAquaponics 4 года назад

Nice one Javinkay. Have you broken ground on the build yet?

@Javinkay 4 года назад

Rob Bob's Aquaponics & Backyard Farm unfortunately I had my greenhouse break so replacing it is going to be my priority for now but it’s definitely getting closer

@trishapomeroy9251 4 года назад

Great video! I'll be looking forward to your bio filter modifications.

@RobsAquaponics 4 года назад

Thanks Trisha. Will have it sorted by next weekend all going well with work this week. Clip will follow after it's been running for a while so I can see how well it works. Cheers & have a top one.

@duvalmartin 4 года назад

Hey Rob. Thank you for taking the time to post your videos. Last fall I decided to take the leap and create a IBC Chop and Flip, flood and drain system. I stocked it with 8 Mozambique Talipia, 2 Plecostomus and they are fertilizing a few Heirloom tomatoes, Jalapeno and Bell peppers, Green and purple Basil, and Khale. I have started experimenting with growing Moringa Oleifera, but since it runs, I will need to figure out how to keep it under control. I was wondering if you given much thought to incorporating IOT(Internet of Things) devices to alert and monitor water chemistry, levels, and flow rates through your systems? Thank you again. This is one of the best hobbies I have gotten into.

@RobsAquaponics 4 года назад

Nice one Duval. 👍👍 I haven't looked into it myself but know a load of folks have set up pH, temperature, water level & other monitors to their systems. I'll probably play around with something once we get the larger system set up in a few years time. Cheers.

@jbl2270 3 года назад

I didn't know that nitrites and ammonia could be at different levels depending on where the water sample was taken in the system. I had a set up a blue barrel CHOP2 system with a RFF, biofilter consisting of shade cloth, one media bed, one raft, 20 tilapias and flourishing produce over 2 years. The fish stopped eating and my ammonia was at 0.5ppm, Nitrite & Nitrate 0, pH fluctuating weekly between 6.0 - 7.0 with buffering. Your video showed me that I probably didn't have enough filtration for the amount of fish waste in my system. I never really fully emptied the bucket style RFF which I cleaned out once a month. Water temperature dropped to 15C and I gradually lost fish till there were none left. Seems like I've made every mistake in the book: not enough filtration, overstocking, fluctuating temperatures and pH

@RobsAquaponics 3 года назад

It can be a steep learning curve at times. Hope the next system goes better for you.

@holemajora598 4 года назад

I think this is exactly what’s happening, thanks bud.

@RobsAquaponics 4 года назад

Hope you can get it sorted Chris. 👍👍

@Berkeloid0 4 года назад

Very interesting! I'm surprised adding any salt at all doesn't harm the plants, I was under the apparently mistaken assumption that any amount of salt was bad for plants!

@RobsAquaponics 4 года назад

Most plants will handle a little bit. Strawberries are normally the first to show salt stress when it goes to over 2 parts per thousand. Hope you had a great weekend. Cheers mate. 👍

@spraycanart 4 года назад

Yes it does harm your plants. It destroys plant cells. Beans and peas don't like salt to name 2 of them.

@RobsAquaponics 4 года назад

@@spraycanart But at what levels mate?

@mkcrew225 4 года назад

You could add a baffle in the sump (or 2) where the water comes from the fine filter, through bio balls (or pot scrubbies) and then to the pump. Only requires a piece of plastic big enough to span the length of the sump. Might silicone it, but you could get away just holding it in place with some rocks.

@RobsAquaponics 4 года назад

That would work but I think a ½ filled 60L barrel will have more than enough surface area for this system. Will be able to let you know in a few weeks all going well. 😉 Cheers mate. 👍

@WhenJigglesAttacks 4 года назад

Hey Rob, love your videos. Why not just add bags of bio media to you radial flow filter. I have had great luck doing something like this in my system. Maybe hang them from your lid on the barrel.

@RobsAquaponics 4 года назад

I've seen folks set up mini bio bags in their settlers & contemplated doing so as well. Decided against it as the flow rate into the RFS has increased with the new pump so which shortens the retention time further. Is still something I'd like to play around with is I get a larger drum for the next build. Cheers Victor.

@brandonterry6194 10 месяцев назад

GRATITUDE 💥🐟💥

@ktf585 4 года назад

Rob question here: what if you proceed the solids to the grow beds and keep them there? Wouldnt the grow bed process it? Isn't that stuff even valuable for the plants?

@RobsAquaponics 4 года назад

They will mineralise in the grow beds as well. Over time they will build up though which may cause issues. That's why many folks like myself remove the bulk of them in the settlers we build. Some will make it through to the beds & that's fine. There are also decent volumes of all nutrients suspended in the water as well so the plants will never starve in a well maintained system. Cheers.

@zaccomusic 4 года назад

good content thanks

@RobsAquaponics 4 года назад

Thanks LB. Have a top one.

@diegosiqueira5478 4 года назад

🇧🇷 bem educativo parabéns !

@RobsAquaponics 4 года назад

Obrigado meu amigo. 👍

@rossstoddart53 4 года назад

Time for some fish & chips Rob haha..

@RobsAquaponics 4 года назад

🤣 Got a few months to go before they're ready to harvest Ross. Cheers.

@joseamaro2533 4 года назад

Maravilha! Rob,

@RobsAquaponics 4 года назад

Obrigado 😁👍

@joecanales9631 4 года назад

I decided I didn’t want the sump tank water going back to the fish without first going through biofiltration so using two smaller pumps with one sourcing from inside a 6” (~15 cm) pipe inside and receiving water flow from the media & dwc beds. That water going to the fish. The pipe has drilled holes to allow some water flow in and out from the sump. Anyway, that’s the plan. Work in progress.

@RobsAquaponics 4 года назад

Nice one Joe. Hope it works well for you mate. 👍👍

@fred-bevhogendorn8023 4 года назад

Bob have you considered putting the bio beads into the sump tank and agitated with air pump.

@RobsAquaponics 4 года назад

I have but will be running a straight "trickle" like filter first to see how that runs. Will be easy enough to drop some stones in the drum if I'm finding it's not working too well. Cheers Fred.

@Mortgage_Choice_Steve_Smith Год назад

Hi Rob, another interesting video thanks. Do you find that the salt input in the system to protect the fish against nitrites has any negative affect on the plants? Thanks

@AnaFernandez-gw7er 4 года назад

Hi rob why were you going back to air pomp and why you don’t go for the kind of venturi you were using? Thanks and cheers

@RobsAquaponics 4 года назад

I have had water pumps die on me a few times so prefer to run a dedicated air line into the fish tank at all times now Ana. Still think they're a good idea for use with the air in the FT & will still use them in the biofilter in upcoming builds. Cheers.

@RiskyR1CH 4 года назад

Great video Rob, doesnt the grow media also act as a biological filter?

@MrPaw45 4 года назад

Yes it does but because it's a split flow system not all the water goes through the grow beds, about half of it is going straight back to the fish tank.

@RobsAquaponics 4 года назад

MrPaw hit the nail on the head. 👍 If the system was set up as a single loop, meaning pump in sump ► fish tank ► solids settler ► grow beds ► sump, then it wouldn't be an issue. As only some of the fish tank water is going to the grow beds, only some of the waste ammonia is being processed. Cheers & have a top one.

@Jack-It-UP 4 года назад

Roll it up like a carpet,feed the water in through the end,works well.long time between cleanouts

@RobsAquaponics 4 года назад

Do you mean the blue filter mat Peter? Cheers mate.

@Jack-It-UP 4 года назад

Hi Rob just sent some pictures to Facebook.

@igordrotsky5677 4 года назад

Hi Rob, I wanted to know if you have any insight into fish diseases in aquaponic farming?

@RobsAquaponics 4 года назад

Just a basic one mate. Have only had one issue here & that was caused by cold temperatures & falling pH. Made the fish susceptible to infection but was remedied fairly quickly. Are you having issues?

@Shane_O.5158 4 года назад

Hi Rob, could you put a growbed after the radial flow filter instead of those 5 spoke plastic biofilters ?

@RobsAquaponics 4 года назад

Certainly can Shane & that's how most systems were set up when I first started out. Pump in sump ► fish tank ► solids settler ► grow beds ► sump. Nice & neat & does the trick 👍 Cheers mate.

@leerobertson3015 4 года назад

Constantly running reed beds seems to be working for me. No matter how much edible plans I’m growing the system keeps going

@RobsAquaponics 4 года назад

Good to hear Lee. 👍

@christopherstaples6758 4 года назад

salt under 3 ppt plants are ok with, perch handle 5ppt easy , should always run at least 1ppt anyhow as a buffer to help against brownblood desease, you can add in a MBBR into the radial flow , just a 20L bucket with bottom cut out with a leaf gaurd on the bottom to contain the media , the inlet updraft moves the k1 , and lets you gain another 10L worth of filtration ~ 50 grams of feed, but to be honest I am amazed you deleted your MBBR 100L of media would be 500grams of feed capacity ...

@RobsAquaponics 4 года назад

Have seen folks set up the settler as a bio as well & considered doing so myself. 👍👍 It's a bit cramped in there for the 30 or so litres of media I want to use so that's why I'm going with the drum in the sump. This system has been set up to show a few problems that some designs have. Wouldn't have much to post about if it was set up like the old one. 😉 Cheers Christopher & have a top one mate.

@jamesridley184 4 года назад

Ok what's your surface area on the bio filter and feed rate per day percentage plus flow rate also how much protein percentage in the fish pellets also do you get wasted fish feed not been eaten on the bottom of the tank and if so how long before it gets sucked up to the settling tank? And do you stop feeding them for a few days to bring down the nitrites ?

@RobsAquaponics 4 года назад

Hi James. The bio in the drum at the moment is shade cloth so I wouldn't even like to guess at the BSA. 😉👍 Will be covering the TAN break down in relation to BSA required in future clips. The fish finish all their feed or I net it out. Think I've had to do that 3 times all up so far & is normally no more than a table spoon or so. No need to stop feeding at the moment as the system is salted & the water temp/pH are fine for ammonia. Cheers mate.

@Vipenstrike 4 года назад

Does the bacteria colonize naturally when you add the fish, or is it something you have to introduce?

@RobsAquaponics 4 года назад

The bacteria are present in the environment & air around us so will multiply as they find a food source. 👍

@briandonovan8455 4 года назад

Why not put a bio filter above the fish tank so any return water always goes through it before going into the fish tank?

@RobsAquaponics 4 года назад

It's more convenient to have all the filtration in one spot. It could also mean more infrastructure for the system depending on how tall the FT is. It would also be better placed after the solids settler for those that are growing with DWC & NFT as the ammonia needs to be converted through to nitrate for them to use. 👍

@mattdawson7055 4 года назад

👍

@RobsAquaponics 4 года назад

👍👍🍻

@mikehotel02 4 года назад

Great video Rob, what are your thoughts on a 100 micron mesh filter screen before the settler, it could be in the top of the settler tank. Cheers.

@RobsAquaponics 4 года назад

Hey Mike. I think it would be better placed after the solids settler as the larger waste will block it up too fast. I was playing with the idea of making up a filter "cup" of sorts to sit under the inlet to the bio out of some fine grade mesh like that. Would just need to pull it out & give it a hose every other day which shouldn't take too long I'd think.

@mikehotel02 4 года назад

@@RobsAquaponics thanks Mate Cheers

@pastureworks3773 4 года назад

Great video Rob, going to check a few spots in the system now. Instead of sea salt, is there a suitable amount of food grade epsom salts instead? I have a bit of this on hand. Thanks! Keep the vids coming! Cheers!

@RobsAquaponics 4 года назад

It's the chloride in the salt that blocks the nitrite from the gills so you'll need to use a fish friendly compound that includes it. 👍 Calcium chloride is also use & is probably better as the calcium will be used up faster by the plants. Cheers.

@TheRomanWolf 4 года назад

Where'd you get the biofilter plastic from? Are you selling it / recommending a 'version' of it? Could you show off your venturi thats on your website? It looks... flasher than your video from many years ago. Would love to see it in action?? And how many litres of the biofilter plastic did you use for that size container (is that a 200L?)

@RobsAquaponics 4 года назад

I bought the biomedia years ago with a mate as it was cheaper to buy in bulk. 😉 It's called PE03 & is made by Small Boss. You can also get K2 Kaldness biomedia which is the same. Best thing to do is shop around as you'll find the price will vary greatly. I think I mention in the clip that it's a 60L drum with about 45L of media. The venturi on the site is the same as the one I showed in the clip a few years back. The only modification is that they removed the valve on the air inlet as it wasn't being used by mist folks. 👍 Will look at posting a clip on it soon.

@lewisholstegge4131 4 года назад

Hey rob I'm about to start setting up my bigger set up I'm looking at have 4 grow beds with a 1000L fish tank and a radial flow separator. Could I use a grow bed instead of a in sump filter to make sure I dont have the same problem?

@RobsAquaponics 4 года назад

You could run all the water through a media bed first then into the sump if you wanted & I think the majority of the ammonia will be converted. Would be interested to see how the levels work for you if you set it up this way Lewis. 👍

@jackiedines5229 4 года назад

Grow beds are bio filters Bob!

@RobsAquaponics 4 года назад

Yep, mentioned that at the start. 👍👍 Cheers Jackie.

@RobsAquaponics 4 года назад

Just thought I'd add in case you can't follow the water flow in the system. In this system only some of the water returning from the fish tank goes to the beds with the rest going back to the fish tank. In a single loop system to water flows like this, pump in sump ► fish tank ► solids settler ► grow beds ► sump. In a system like that it wouldn't be an issue at all. Cheers.

@rumplejesusskin 4 года назад

I live in Colombia and cant find many items. I want to build the system. I cannot get those testing kits. If I see this problem can I add more grow beds to fix it?

@RobsAquaponics 4 года назад

Adding more grow beds will help if the water is running through them. If the system was set up as a single loop you shouldn't have an issue at all. The link below will take you to a section in a clip that explains what a single loop system looks like, ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-0QQA5BpWKec.htmlm03s Hope that helps some.

@backerisaboobacker 4 года назад

Black pepper can possible in quaponics

@RobsAquaponics 4 года назад

I can't see why not if you have the right climate & structure for it t climb on 👍👍 Would like to know how you get on if you give it a crack mate. Happy growing.

@backerisaboobacker 4 года назад

@@RobsAquaponics ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-dYrqmBgYqjM.html

@thomasa5619 4 года назад

Hi bud, can you point me in the direction of something that can handle not being manually fed for 10 days at a time? I was wondering about sucking catfish or shrimp and algae but I don’t know how well that would work I work a travelling railway job in CQ so I can’t exactly have a pet that requires daily feeding

@RobsAquaponics 4 года назад

Hey Thomas. Most fish will handle a week or so but am not sure about 10 days. Might be a good idea to contact a hatchery & see what species they would recommend mate. Sorry I'm not much help there. Would like to know what you decide on once you find better info. Cheers mate.

@thomasa5619 4 года назад

Yeah I’ve been speaking to a bloke I work with (who’s family runs a pet shop) and it seems like the best I can do is an auto feeder and a small aquarium. Maybe I can do a houseplant aquaponics setup This week I have the pleasure of 4 days home between two 10 day swings. Thanks

@cathsully6603 4 года назад

Can /did you eat the fish that had the poisoning?

@RobsAquaponics 4 года назад

I haven't lost any to nitrite issues Cath. I know folks that have eaten fish that died from it. More often than not fish die from it while the system is being cycled so would be far too small to eat.

@monstacoin8236 4 года назад

Where do you get the 5 spoke bio media?

@RobsAquaponics 4 года назад

Aquaculture/aquaponics suppliers mainly but some aquarium shops sell it as well. Doesn't need to be the 5 spoke, just something with protected surface area that the bacteria can colonise. A mate sells a great version in his online shop if you live in the US, itechaqua.com/biomedia/ Hope that helps some MC.

@nodustechnologies3989 4 года назад

what speaks against converting the whole sump to a bioreactor?

@RobsAquaponics 4 года назад

You could if you wanted. The system that the current fish tank came from was set up so the pump drew water from the bio to send to the fish. 👍

@TheDoctorGlock 3 года назад

How often do you clean the media in the bio reactor?

@RobsAquaponics 3 года назад

I was going to clean it every few months but ended up scrapping that filter as it wasn't keeping up with the amount of feed that was put into the system. I installed this biofilter a few weeks back if that helps any, ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-U_ulT72bYKk.html I still have a trickle filter of sorts in there but that's more just to collect the finer solids that pass through the other filters. Hope that helps some.

@tracytesson7171 4 года назад

Hello Rob! How much of the bio filtration media would I need for a 55 gallon drum to colonize the bacteria? I’m still waiting on. Pieces and parts to begin constructing my system.

@MichelVaillancourt 4 года назад

the stuff Rob is using is ~10:1 ratio of water volume to bio media. So a 1000L/250gal fish tank at max density would need 100L/25gal of bio media.

@RobsAquaponics 4 года назад

Hi Tracy. It all depends on the amount of feed that you will be feeding the fish. That will give us a rough idea on how much biological surface area that's required for bacteria to colonise. As an example, for my climate & the type of feed I'm using, I need roughly 1L/1quart of PE03 or K3 biomedia to process the waste from one fish once they hit 500g. So for the 30 fish in our system 30L/8gal of media to process all the waste generated by the fish. Hope that helps some. 👍

@tracytesson7171 4 года назад

Rob Bob's Aquaponics & Backyard Farm thanks again Rob! Keep the videos coming we learn so much!

@spraycanart 4 года назад

We have an Aquaponic system total of 8,000 lts. No filters no solids filter no trouble. It has been running now for 8 years. don't over feed your fish and you won't have any problems. It is as simple as that. Play with your system and YOU will have problems. If it is running and no problems why change it?

@RobsAquaponics 4 года назад

Nice one Barry. Maybe you could post some more clips to help others out. 👍👍

@mr3748 3 года назад

Barry my uncle does the same with his aquaponics system. He has a 1000liter fish tank and doesn't use large filters, he olny has one small 25mm inline filter that you buy from a plumbing store just to filter out overly large particles. Hell he doesn't even have a pH test kit 🤣... He grows all kinds of vegetables, herbs and peppers. I agree with you, if you don't over feed and stick to low stocking densities then you won't have any problems. My uncle has one goldfish and a few koi, he feeds them once a day or once every second day. I think in Mr Robs case, he has a commercial system meaning for him to harvest many fish and plants: A lot of fish have to be fed a lot in order to produce a lot of nutrients for a lot of plants. This means huge amounts of solid waste comes as a unwanted byproduct weather you like it or not🤣🤣 When I look at his system, I always get the impression he is walking a tight rope by growing as many plants and fish as possible and keeping potentially harmful nutrients under control. Trying to run the system on its absolute limit. Personally I prefer running the system similarly to yours (I am still trying to get there), by keeping stocking density low and not overfeeding. I've actually made mistake as I've used goldfish in mine, I knew goldfish are notorious for being messy, but I've just discovered exactly HOW messy they actually are. 🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️