How to Fishless cycle - easily and quickly 

Use 2 to 4 drops of the ammonium chloride - the concentration changed. Adding 1 drop is fine but the right amount is 4 drops per gallon.

Finally someone with clear and direct instructions. All these damn fish forums have people chiming in with little to no experience, confusing the basic process so nobody knows what they are doing. I am SO glad I found this video. I bought a new tank. I removed the filter bag once the temp got up to 78. Then I added tetra safestart bacteria and 15 drops of pure ammonia from Ace hardware. Ammonia test read 2ppm. Now I wait. Very easy instructions to follow and I wish those fish forums were taken down as they only lead to confuse people looking for answers. Thank you!!!

Just did your cycle method. Wanted to provide feedback. It worked. I followed the printable pdf for using the one and only. I have 150 gallons. I used your ammonia and did 4 drops per gallon. I measured ammonia, nitrite, and nitrates everyday. I was at 1.022 salinity at 77.5 degrees on average. My nitrates spiked up to 85. I did a 30% water change. nitrites were deep purple. I checked the next day and nitrates went down from 85 to 50 ish. Nitrites were still high. Ammonia was starting to lighten up. 4 days later nitrates were down to 18, nitrites still deep purple. Ammonia was .25 or almost done. A few days later ammonia was gone, nitrites shifted to lavender, and nitrates were still dropping. Yesterday light blue nitrites, low nitrates, and ammonia is as low as it goes. I love your product. I didn’t have the data in front of me, but I checked the water every day. I the key was when I saw the ammonia start to drop and move closer to zero. Even though I had high Nitrites I was excited because I knew the bacteria was doing it’s thing. What surprised me the most was how the nitrates started dropping on their own. I looked it up, and since nothing is in the tank other than the bacteria, it must of been the movement into gas that made it drop. Thanks again!!! I will recommend your process to everyone. I will also recommend they watch your presentation you did at Macna on the brs website about cycling. I learned so much! Thank you. Please keep teaching us, you have so much to offer.

Thanks for the new video Dr. Tim! I've used One & Only to fishless cycle several of my tanks, and also use the Ammonium Chloride drops twice a week (as you instructed in an email) to my quarantine tank when it's empty to keep the cycle going. I've never experienced a bacterial bloom, and have healthy cycled freshwater tanks thanks to you and your products.

Wish had seen this video before I used Dr. Tim's ammonia because the instructions on the bottle said to use 4 drops per gallon. Next day ammonia test reading was high off the chart. Best to put 1 drop or more in a gallon of water to determin the exact amount needed to reach 2.0 MLS or for the desired ammonia amount looking for. All is good after a 25% water change then added one & only purchased after the ammonia. Dr. Tim's is the best. Thumbs up!

Warning: if you dose 4 drops ammonia per gallon without taking into account the space your substrate and rock work takes up in the tank, you will with certainty overdose ammonia past the recommended max of 2ppm. The reality is you do not actually have 20 gallons of water in your 20gal tank (for example), ultimately resulting in stalling your cycle. I believe this is one of the single biggest issues people face when fishless cycling their tanks. The reality is most people will need closer to 2-2.5 drops per gallon of ammonia to reach the required 2ppm dose in the tank when starting your cycle. Be cautious, dose 2 drops per gallon, wait 5 minutes and test your initial ammonia levels. Add more ammonia if needed. Hope this helps some people not make the same mistake I did.

When I first learned about the nitrogen cycle I didn’t want to get a fish anymore because I thought it was very confusing and it wouldn’t be fair to the fish if I did it wrong so I waited and didn’t get one, after watching this video I realize it’s not that difficult and I’m gonna cycle my tank I’ve had sitting in my room for months, thank you! This is the only video I’ve been able to understand completely

Thanks Dr Tim for the fast reply! I knew I missed something, I always do haha.

Dr. Tim thank God I found this video. I plan to cycle my fish tank with your products. thank u for making it easy for Beginners like me. 🤗

Hello Dr Tim, thank you so much, irs wonderful to Finally find someone to clearly explain what is required to cycle I brand new aquarium. I’ve just ordered a 2 oz bottle of your ammonia chloride to start the process of cycling my new 135 litre aquarium. My new aquarium has new driftwood, rocks and live plants in it with black sand. It’s been running fir 6 days now and been doing water tests every two days, however there is no ammonia in my tank. Once the ammonia chloride arrives I can follow your precise instructions and get my new aquarium cycled, hooray, many many thanks Dr Tim, your a genius

What happens if my bacteria was only partially cloudy??

Omg this is the easist explanation out of all the cycle videos i have watched thank you so much subbed

Mines says 4 drops per gallon

Glad you made this video. There was a lot of confusion on this topic throughout the forums.

Hi Dr. Tim, is my tank only cycled if within a 24 hour period my ammonia and nitrite are zero? My ammonia is consistently zero after 24 hours but my nitrite takes about 48 hours to get down to zero. Thanks!

Works absolutely perfectly. My tank was ready for fish within a week!!!!! Recommended highly!!! All fish did great no problems.

Try put headset or earphones and play this video. There's something going on, it only play one earpiece lol

This video was sooooo helpful for me thank you so much, I'm very new to the fish community and I've been searching constantly for videos on how to cycle and none of them seem to have made sense to me... this however makes clear sense! Thank you!!!

Why in the hell would you leave this video up?!?!?!? If it’s WRONG, take it down! I just started my tank TODAY using the 1 drop per gallon and thought, “great, I’m doing well”, then I read your bottle which states 4 drops per gallon. Hours later and I find out I should have read comments under this video??? Who the hell thinks to read all comments before taking a video at its word, YOUR comments “Dr Tim”! Leaving this video up for newcomers who are genuinely trying to do the right thing is blatantly ignorant and irresponsible! What the hell do I do now?!?!?!?! I am pissed off! TAKE THE VIDEO DOWN! POST A NEW, CORRECTED VIDEO!!!

Using this stuff now on my 50 gallon.. uses a bottle of the one and only.. added 200 drops because the new solution is 4 drops her gallon.. now its a waiting game.. i have my fluval aquaclear 110 running and my eheim 150w heater running as well. keep you guys posted.

I've been doing it wrong this whole time! I've been adding ammonia to try and reach 2 PPM (Online forums are "amazing" by the way) my nitrites are literally above my test kit (Master API Test) levels. Guess who's gonna wait three or four days to see what happens. This guy! Thanks so much!

Love this kit! My new tank cycled in only 3 days, but of course I'm continuing the program for the full week. Then I plan to plant it and dose CO2 higher to give them a good start. Maybe a couple weeks later I will do a hefty water change and let everything settle back in before transfering my fish. At first I was so gung ho with this new tank, but there were several hiccups as I built the substrate (designed my own undergravel filter to have hills but also maximize water volume). Then my fish surprisingly spawned in the old tank and it forced me to slow down again... best lesson ever! I'm actually enjoying taking my time to be careful and educate myself as I go. Dr. Tim is a big part of that, and his bacteria/ammonia kit is a fabulous tool!

Hi Dr.Tim , I am currently day 14 into the fishless cycle and i cant seem to get my ammonia and nitrite to drop to zero within 24 hours to finish the cycle. It zeroes out in roughly 30-48 hours. I dose ammonia only when it drops to 0.25-zero ppm of ammonia and nitrite. Do i keep dosing ammonia when the ammonia and nitrite drop to 0.25-zero ppm, until it is consumed in 24 hours?

Thank you so much Dr tim for the response first time I cycle a tank was very easy, great products Dr tim

When you say remover filter socks do you mean also the floss pads inside a canister filter?

Once I figured this whole process out, it really is quite simple. I started with spring water and soil. Under two weeks I am completely cycled. *I could have done this sooner perhaps but, it didn’t occur to check the pH. I was around 6.2. I added Alkaline boost and the results started happening fast. Great product if used correctly.

Hi dr Tim Im currently fishless cycling. I have a 15 gallon tank with sand (not live) and some pieces of dry rock. My tank temp is around 81 and I keep my lights off most of the time as directed. I also left in the blue filtration pad as you said. I did everything according to the outlined instructions. On day 7 my ammonia was about 1ppm, nitrates 100, nitrites 8ppm. I realized this was quite high for nitrites so I did a partial water change. Yesterday on day 14 of my cycle I tested and found I have 0 ammonia, 0 nitrites, 0 nitrates. So I redosed ammonia as directed that night and today on day 15 I'm reading 0ammonia, 4nitrites, 80nitrates. Is my cycle going according to plan? I know once my ammonia and nitrites cycle within 24 hours to 0 my tank is cycled. My ammonia is able to reach 0 in 24hrs but not my nitrite yet. I've been testing everyday if you need more readings. Would love your input on how close I am to being done cycling my tank

Hei Dr Tim. Greetings from indonesia. I saw many reviews about your products. And i am order it from amazon and will be shipped to Indonesia next wednesday. Want to ask you, i use HMF filter with biofoam and sponge filters. Should i turn it off when i set up the tank for few days? Or just let it on?

Can say this does work. :) After using the nitrifying bacteria and ammonia my tank was cycled in 10 days. Have a very happy betta swimming away in his 5 gal tank and water levels been perfect. 👌🏼

Thank you to you and/or your staff for answering my questions on your site the other day. I'm the person with the 55g dirted aquarium with CO2 who mentioned the pH. Currently, my ammonia dropped from 2 to 1 and my nitrite rose from .5 to 5. Furthermore, my nitrates are rising - from 0 to 10. My question is if my ammonia drops to 0 and nitrites drop to 0 or near 0 with a further rise in nitrates should I add more ammonia or consider the cycle finished and water change + fish?

Hi Dr. Tim... I ordered your one and only, first defense,aquacleanse and ammonium chloride. Today I am on my 14th day of fishless cycle. I've added the full dose of ammonium chloride for the 3rd time. Also Im still in process of almost finishing my research on what fish to purchase. Even tho I've added the recommended dose for the 3rd time is it ok to continue to dose until I receive my fish? If so should it be half dose or full dose? Or should I do the recommended water change and if so then continue to dose? I have a 50 gallon. All Filters are running, heater is at 88 degrees. Ammonia 0.25 ppm, Nitrites drop slowly to 0.50ppm, Nitrates 5.0ppm. Also Thank you for the extras that you sent. You are a top notch business man! Thanks in advance for you reply. Happy Holidays.

I have a juwel rio 180 with inside filter, should i take out all the filtermedia of let iT there? (Sponges, cheramic box etc?

Did the instructions on the bottle just get me to mess up my whole tank?

Hi Dr tim my question is i have a 130L tropical tank, its been up and running now for aprox 7 weeks, i used your dr tims all in one to cycle it, but i keep gettin from the out let exsternal eheim pro 600L filter what looks like piceses of skin floating all over the tank at time, 2 to 3 time a day, my guess is it could be biofilm in the pipes but im not shor, i used new pipes on the set up, and if this will go after time, if this from the all in one ? Advice please, im not over feeding, Thanks for any advice Thanks in advance

Hi. Do we just have to use One and Only once at the beginning, correct? tks

Hi I have a quick question that I'm a little confused about. In the video you stated to remove your filter sock is that something completely different than you filter sponge? Because from what I have heard from watching many fish less cycle videos is that the beneficial bacteria love to grow on you filter sponge? For the first about 11 hrs after adding one and only I removed my filter sponge block that contained my filter media thinking you meant it was the same thing when you said filter sock. Eventually after I was a bit skeptical I watched many cycling videos that convinced me to put the sponge with the filter media back into the tank. Did this harm or disrupt my one and only? Is a filter sock the same thing as a filter cartridge with media? Please help

Hi, I set up my new tank and let it sit for a day. I have the substrate made from volcanic soil at the bottom as I've already added live plants. After 24hrs from when I set up the tank my ammonia was at 2ppm and I added your One and Only product. The water became a little cloudy for only a few seconds and then it totally cleared up. What does this mean? Also, 24hrs after adding One and Only, my ammonia is between 0.5 and 1.0pmm. Where should I go from here? Thanks!

Hi what concentration level is the ammonia. i am in Australia and the pure Ammonia is hard to find but i did get one that says 25% concentration. so in my 100 litre tank (26 gal) do i still drop 26 drops...or should it be different based on the ammonia concentration

can we do this method in a jar with used aquasoil..without a filter?

Dr.Tim i have a few questions, I bought Dr.Tims Ammonia but not One and only because at the time I didn't know about it. So I've been cycling my tank with the Ammonia, I finally got my Nitrite to appear and My ammonia to 0, my question is since my ammonia is 0 and My Nitrite is at 4ppm do I have to add more Ammonia? What is too high of a Nitrite where I would have to do a partial water change? Thank you.

on day 5 using dr tim's ammonia and seachem stability. 2ppm ammonia, 0.25 nitrite, 5ppm nitrate, 6.4 ph. I have done a 20-25% wc for the ph level as stated in your recipe card. But do i wait for ammonia and nitrite to go down since i have 5ppm nitrate? or do i dose another 4 drops per gal of ammonia since that and nitrite are not over 5ppm?

Thank you!!! Finally information that makes sense and is straight forward!

Hi im sorry im alittle bit confused in the last part and also reading through the comments you recommend to turn off filter for 48 hours after i put the ammonia chloride in but also i see some that say leave everything in filter and keep running. Which should i do?? I have a 10 gallon tank with aqua safe filter

hey dr tim, im going to buy your ammonium chloride stuff online. i found it on amazon! yayyyyy!

Would this process change if you had plants in the tank in the initial setup before you started this process?

Thank you for such simple instructions, great video!

What is filter socks is that the media in filters iv cycled a small 20L tank but I can’t seem to get my 76L to start it’s been 3 days it’s ammonia is between 4/8 iv added a whole bottle of stability and nothing iv orderd your bacteria would that help should I bring my ammonia down a little with a small water change

So do I still need the first defense and the tap water detox? Or just these two?

How would i fishless cycle a planted aquarium? Would i cycle a bare tank or would i cycle the tank whilst the soil substrate and plants are already in the tank?

That's how it's done!! Excellent information

So you basically you add the Ammonia to get the bacteria to start working to keep your tank clean so it doesn't die off?

It is day 3 and the recipe card says to add ammonia. My ammonia test is showing 2ppm, is it safe to add another dose of ammonia? The card says you can add if under 5ppm but the video says not to add until 1ppm. Should I wait until levels are at 1ppm or should I add ammonia now as it is currently below 5ppm?

Hey Dr Tims, Been stuck on high Ammonia, Nitrite and Nitrate for a few days, after a 30% water change Ammonia has dropped between 0-0.2 after 2 days while Nitrite is 1 and Nitrate is 50. Do I wait for the nitrite to drop now ?

hey Dr Tim I decided to use your product on my new saltwater tank [ 70 gallon cube ] . I started 4 days ago... this is day 4. I put in the one and only -4 oz bottle and added 4 drops per gallon as directed on the bottle. waited 24 hrs and tested... ammonia was off the charts 8ppm... nitrate was 0. I skipped day 3 of adding more drops of ammonia. Im waiting till day 6 as it says on your sheet from your website.... my question is... come day 6 and if there is 0 ammonia... do I add another 4 drops per gallon or cut it back to 1 drop per gallon? and how many more times will I add ammonia till fully cycled... I know when ammonia and nitrate is 0 .. but since the initial readings were off the chart [ 8ppm ] ... does the tank need more ammonia to cycle?? thanks for any help on my confusion. John F

Day one before I added anything I had .5 Ammonia. I have live sand. I added the drops and day 2 it’s at 2ppm and .25 nitrite. I know I shouldn’t add more ammonia day 3 unless it drops but how low will the ammonia have To be before I add more?

Should I leave my heater on when I'm doing this? I just started my cycle yesterday and the only thing on is my filter. My heater and lights are off but I'm planning on turning on the lights in the next 2 days.

Hey dr tim, i have a question does sump counts to? Like my main is 18 gallons and my sump about 5 gallons is the sump counts? And 2nd question does this work with microbacter7 from brightwell?

Hi dr tims ,this's my First time Using the one and only with dr tims ammonia ,pour the entire bottle 2oz and 1 drop per gallon ammonia (10 gallons tank) has been cycled for 7 days , ammonia stuck at 2-3, nitrate 0 nitrite 0. What's going wrong? Is the one and only bacteria is all dead or not working?

I have used the all in one bacteria and also put ammonia in the tank as well 5 days ago and I see lots of ammonia and no nitrites and no nitrates at all. I checked the water every day and it seems like it's the same as the day I started. Is the bacteria working at all or did I get a bad bottle?

OK Dr. I'm on day 11 and my ammonium is at 0 ppm and nitrite is at .25 ppm so I'm going another round of adding ammonium at 2ppm then once this raises and lowers back down to zero can I do a partial water change and add fish. 55 gallon reef tank 20 gallon sump 60lbs dry rock salinity 1.024 pH 8.1

Hi im using salifert test kits ive checked water tonight it now shows nitrate 0.25 and amonia 0.5 still So what is going on any advice ?

Hi Dr Tim i have cycle my tank for 2 months now but my ammonia is 8 ppm do i need to do a 100 percent water change? or i just add your product in? without doing water change? Thank you dr tim.

Question. The tank is have is a 31 gallon. After sand and rock I only put in 22 gallons of saltwater. Should I dose for the tank size or the actual amount of water that is is the tank?

Hi Dr Tim, Got another question. Started my cycle 6 days ago and been testing ph, nitrite and ammonia. However i've got two test kits for ammonia and one of them is nh3 and the others are nh3+nh4 and there are giving me very different results. Which one should i stick to during the fishless cycle, as I dont want to overdose the ammonium chloride.

How do set up a small half gallon tank chemically with one small Java plant? This is for a betta and I realize that betta needs a 2 gallon tank at the minimum.

It worked! Took my 20 gallon tank 3 weeks and 3 days.

Dr. Tim, I have a question. How many drops of the ammonia solution would you put into a tank like a 2.5 gallon aquarium? Would you put 3 drops in as if it were a 3 gallon aquarium or or less?

So my tank has been up for about 30 days with your product. No my ammonia did recently drop to 0 within the last week, but my nitrites have stayed somewhere around 2pm-5 and have not moved. I eventually did a 18% water change and did add a small six line wrasse to the tank and just add prime each day to detoxify those nitrites. What I’m wondering is, is the bioload in the tank too small with a small Wrasse in a 75 gallon tank that the cycle is just stalled? If so, would it be ok to go ahead and add 3 more smaller fish to the tank and dose more Safe and Easy bacteria while having existing nitrites already in the tank? My thinking is the Safe and Easy will add more bacteria to help with the new fish, and the fish themselves will give the nitrites what’s needed to convert into nitrates.

I have a 30 G tank, I used Dr. TIm's All in one 8oz and Ammonium Chloride. Added the whole bottle of all in one, added 30 drops of ammonium chloride in it. After 48 hours, the Ammonia is 2ppm and Nitrite is 2ppm and Nitrate is 10ppm. Should i wait for ammoina/nitrite to go down? i also have a fretZyme turbo 900 live bacteria: it's live and kept in a fridge. Can i Add that into the tank as well so it helps with the ammonia?

Hi! I ordered your One and Only Bacteria and your Ammonium Chloride. In this video, you say 1 drop per gallon. The label on the Ammonium says 4 drops per gallon. Which is correct? Thanks!

H! Should I remove some canister filter media when cycling?

Also my amonia bottle says to add 4 drops per gallon for fishless cycle and your saying one drop per gallon. Which one do I go by?

Hi Dr. Tim, I am currently on my 13th day of cycling my 5.5-gallon freshwater tank. My ammonia levels have been pretty persistent at 3.0 ppm, and I began to get a nitrite reading of 0.25 ppm on the 28th. A lot has changed with my nitrite and nitrate levels over the course of a few days. Today my readings were: Ammonia: 2.00 ppm Nitrite: 5.00 ppm Nitrate: 30 ppm pH: 7.4 ppm I'm not sure how to go about this--should I do a water change, and if so how much? I do not have live sand, but I do have 3 moss balls sitting on the substrate on the bottom, along with a few toys and fake anemone. Thank you so much!

so today is 31 I bought a 20 gal tank on the 27 I put 2 mollies one female Betta and a rainbow shark they seem happy but I didn't add any bacteria or let the water cycle or ammonia and bacteria whatever I did put water conditioner it's been four days what should I do should I take the fish out or just do water changes so the ammonia can come out the water

Is it safe to get one and only shipped from Amazon?? As in it wont be dead on arrival?

I Found this video after I started my tank. Question: My tank is about on day 11. and the ammonia has been spiking at 4.0 and now it's at 5.0 ammonia! #1 is this normal for it to go that high? #2 Now that it has been spiking ammonia for about 5 days or so, how much longer until it completes the cycle? Thanks!

I started mine and 24 hours later I do have an ammonia reading. Seems to be between 1 and 2. Zero nitrites. Is my bacteria bad? I ordered it directly from Dr Tim's website and also ordered the climate control pack. I've been keeping it in the fridge like it says to on the bottle.

Will my cycle pic back up if I fix the PH in the tank? It has stalled quite a bit

What size bottle of one and only would I need for a intex mini pool (89 gallons) bare bottom. Will be planting plants in a few weeks, after cycled. For a fishless cycle on fresh tank day one what do I treat the water with. I see you say not prime. I have some instant deCHLOR. If that's better the prime do I continue using that when I do water changes? Or start with deCHLOR wait a day then follow the video establish a cycle and use prime for future water changes/treatment?

hey Dr Tim, great videos. Im using both the nitrifying bacteria and the ammonium chloride and im on day two and my readings are 0 amm /2.0 nitrite/10ppm nitrate do I just wait another 24hrs to re test to let nitrite and nitrate levels go down then add more ammonium?

Should I have my filter running through the cycle? I have an Aqua Clear 30 with the AquaClear Foam, Activated Carbon Filter and BioMax Cycle Guard.

just started the process of cycling my 6 FT 125 tank. I used Dr Tim's One and Only and added the ammonium chloride. cranked the heaters up. filters running.........magic

My ammonia and nitrite are both at a quarter part per million now. Do you add 4 drops per gallon again once the ammonia hits 0 or is it half the dose- like 2 drops per gallon? I’m worried that adding more ammonia will slow down the process.

If you don't add ammonia until the ammonia and nitrites are both zero how do you know that the bacteria hasn't just died off rather than turning it into nitrates? Surely you have to keep adding ammonia up to 3pmm to feed the bacteria or it'll just starve and died and give you a 0 reading. Without testing nitrates it's impossible to know, isn't it? I've probably misunderstood something? The fish will constantly be producing ammonia so don't we have to replicate that by keeping the ammonia topped up? I'd love you to reply. Great video: )

On your instructions it says use four drops of ammonia for every gallon. Is that wrong? I did that to my tank yesterday and it’s ready .5 ammonia and I did this at 2 o’clock yesterday and it’s 8 o’clock the next day and it’s reading .5 ammonia.

Hello Dr. Tim. I'm having some issues getting my 60 gallon cycled and I could use some clarification please. I dosed the Dr. Tim's One and Only and added ammonia as per the instructions. The next day I measured the Ammonia and it was at or around 2ppm and Nitrite also around 2 ppm. A day later the Ammonia level was 1 ppm and Nitrite around 3 ppm. I happen to have read on a Seachem support forum that in order to speed up the nitrogen cycle it was recommended to add Seachem Prime every 48 hours. Along with Seachem Stability every day. The reason for adding Prime being that it makes the Ammonia and Nitrite easier for the bacteria to consume. Indeed the Ammonia level went to 0 ppm but the Nitrite level from what I can tell are at 5.0 ppm. Tonight I read on your website the following: Do not add ammonia removers to bind the ammonia - overdosing with these products will just increase the cycling time. However in your video titled: "How to Set Up a New Aquarium - Fishless Cycling." You add AquaCleanse. Afterwards stating that if we choose to do a fishless cycle that we would only need to add the ammonia. So my first question is: For a fishless cycle do we need to add AquaCleanse or? Secondly I read on your website quote: "If either ammonia or nitrite concentration get above 5 ppm, do water changes to lower the concentration." I'm sure that my Nitrite level is at or above 5.0 ppm so do I need to perform a water change and if so how much of one do you recommend? I ask this because you say in the How to Fishless cycle - easily and quickly video that if we have elevated level of Ammonia or Nitrite to wait. However there is no mention of performing a water change if Nitrite is at or above 5ppm. That being said, in my case having dosed Seachem Prime twice 5 ml x 2 over the past 4 days and having an Ammonia level of 0 ppm, Nitrite at or above 5 ppm and Nitrate at 20 ppm. Do I need to start the process over? I.e empty my tank buy another bottle of One and Only and start over using One and Only and Seachem Stability to supplement the nitrifying bacteria? Or can I salvage this by not adding any more Prime, performing a water change to get the Nitrite levels down below 5 ppm and supplementing with Stability? Thanks in advance and btw I love all of freshwater products and your videos.

Im about to cycle a tank using your product I am wondering how long I should wait after putting the water and rock in the tank before adding the live bacteria? I am using dry rock and dry sand in the tank and I have had the dry rock soaking for a little over 24 hours. I have read some people say to wait before adding bacteria and others say to add it right away. What would you suggest?

Hello Dr Tim, I’m new to aquariums. My set up consist of Live Sand, Crushed Coral, Live Rock. My tank has been set up since 12/30/21 and today 1/11/22 I’m adding in One and only and ammonia. Since I have all that in tank would I still add 4 drops per gallon or should I test my levels before adding any ammonia?

Thank you!I was planning to get a fish next week but didn't realize I needed to cycle my tank.I don't have the tank but I am going to ask my parents to get my some of your product so I can have my tank cycled fast and get my fish!

hey can i use the drinking water it doesnt have any chorine it has 7.3 ph and its other chemicals thoe but i dont rly know of its good for the fish

I have a filter roller installed, will this mess up the process? I am new to reefing and it was hard to put in.

I have a filter with a filter pad that I believe has carbon in it. Do I need to remover the pad during this process?

Currently cycling a tank, on my 2nd week I read 0 ammonia, around 4ppm nitrite, 50+ nitrates. Should I add ammonia or wait till nitrite drops to 0 as well?

I added your ammonia chloride and used another brand of bacteria that I had from before . Is this ok ? Thanks

Do I still need to get the ammonia if I am using live rock and live sand?

My ammonia has been .25 for a while but my nitrites have gone from 5 to 0 the nitrates have stayed at 160 for 3 days. I was vacation when I added the ammonia and when it should have spiked so I couldn’t measure it. What do I do?

is the new ammonia bottle still should be 1 drop or 4 drops(it says 4 in my bottle) per gallon?

Hi I have seachem prime and seachem pristine and dr Tim’s ammonia drops which seachem would be best to use instead of the one and only.

I'm totally new to aquariums and have found and purchased your product (has not arrived yet). In your video, you mention removing the filter sock but I'm not sure if my filter has one or not. I'm using the Fluval Aqua Clear that has three stages: foam, activated carbon (in a pouch), and biomass (in a mesh poly bag). Should I remove any of those media during the cycling process? Also, I assume I should have the filter running during the cycling, is that correct? Thank you.

So started a new Marine Tank by adding One and Only 2 Days Ago, then added 3ml of Dr Tims Ammonia (60gal), tested Yesterday, 0 ammonia and Trace of Nitrite possibly 0.25 - 0.5, so added 3ml of Ammonia again, tested today Ammonia 0 Nitrite 0.1 at most, Nitrite 1.5ppm. Turned Skimmer and filter roller on for the 1st time. Should I add a 3rd dose of ammonia and turn off the Skimmer/Roller again or leave it for another 24 hrs and test again?