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If you are following Dr. Tim's fishless cycle, then just wait until nitrite drops to 0. Then, dose ammonia again and rinse and repeat, until both ammonia and nitrite reads 0 after 24 hours from dosing ammonia.
Is that what they advise? Didn't know that, I thought it was like 10 days and done.If you are following Dr. Tim's fishless cycle, then just wait until nitrite drops to 0. Then, dose ammonia again and rinse and repeat, until both ammonia and nitrite reads 0 after 24 hours from dosing ammonia.
Nitrite-oxidizers take longer to grow than ammonia-oxidizers, so this is quite normal.
YesDon't worry about it, nitrite isn't harmful in marine situations. Are you seeing any nitrate?
Nah, Dr. Tim ia firmly in the 'it will finish cycling when it finishes cycling' camp.Is that what they advise? Didn't know that, I thought it was like 10 days and done.
I would say that this tank has cycled already.
I think it took me about 10 weeks to see constant nitrite conversion after adding ammonia, so I do agree there are many variables in how quickly the NOB develops.Nah, Dr. Tim ia firmly in the 'it will finish cycling when it finishes cycling' camp.
Fishless Cycling | DrTim's Aquatics
The term "fishless cycling" refers to the process of establishing the nitrifying bacteria in a newly set-up aquarium without using fish which are used in the traditional cycling method. The problem associated with using fish in the cycling period is that normally, when establishing the...www.drtimsaquatics.com
Which I am also in. Every tank is different with different cycling starting points. Temperature, pH, salinity can all affect how fast or slow the beneficial microbes grow. What species these microbes are also matters, and so does where they settled in the sand/rocks/biomedia. With so many variables, I do not see how there could be a specific timeframe for cycling.
Except it means you would also have absolutely no idea what the nitrate reading is, if that bothers you. I would always wait for nitrite to drop but you haven’t got to. Impatience has a lot to answer for.I think it took me about 10 weeks to see constant nitrite conversion after adding ammonia, so I do agree there are many variables in how quickly the NOB develops.
Are we concerned about nitrite? No not really.
This would be my approach under the circumstances.You are cycled in the sense you can add fish. Do a large watch change though so nitrates don’t sky rocket
My only concern really is that nitrite might get so high that it inhibits nitrification itself. I first heard about this from Dr. Tim when watching his MACNA talk and/or reading his article or something. I later found peer-reviewed articles that seem to support this. Not so much the exact numbers Dr. Tim listed, but generally that nitrite seems to inhibit the growth of nitrifiers, or at least their nitrification activities.I think it took me about 10 weeks to see constant nitrite conversion after adding ammonia, so I do agree there are many variables in how quickly the NOB develops.
Are we concerned about nitrite? No not really.
That's what I was very surprised about as well first entering this side of the hobby. XD So many schools of cycling. Or maybe 'cycling' in quotation marks, given how differently people defines it.Its funny how opposite sides of the spectrum I am from most on cycling. I wait until I can see a detectable drop in ammonia (or a .5 ppm increase in nitrite) in my ammonia soaked rock bucket then I rinse the rocks in fresh SW. Good as cycled for atleast a few fish and CUC as soon as I move the rock to the new tank.
Last week I added it.Don't add any more ammonia, just wait it out. When did you add the ammonia? Are you using a Brute can?