IceH2O
Fish Fanatic
I'm not going to say this goes for everyone, of course with anything there are many variables.
I 'tried' cloning my tanks.
I had a 20 gallon and started up a 55 gallon. I put the filter media in the 55 gallon and half the fish load. For the 1st 3 days everything was fine. The next day I had small amounts of ammonia ( .25 )and nitrites (.25 ). After doing daily waterchanges my ammonia has fallen to 0 and have stayed there. The nitrites are still fluctuating between .25 and 0 but aren't 0 yet. I'm doing daily waterchanges and hopefully soon it will stay at 0.
My 75 gallon I moved the entire filter from the 20 gallon, after a week of running on the 20 gallon. The ammonia has stayed at 0 but the nitrites climbed to .25. Dealing with it same as the 55 gallon.
So 'instant or clone' I have a problem saying.
Shortcutting the cycle is more like it.
I 'tried' cloning my tanks.
I had a 20 gallon and started up a 55 gallon. I put the filter media in the 55 gallon and half the fish load. For the 1st 3 days everything was fine. The next day I had small amounts of ammonia ( .25 )and nitrites (.25 ). After doing daily waterchanges my ammonia has fallen to 0 and have stayed there. The nitrites are still fluctuating between .25 and 0 but aren't 0 yet. I'm doing daily waterchanges and hopefully soon it will stay at 0.
My 75 gallon I moved the entire filter from the 20 gallon, after a week of running on the 20 gallon. The ammonia has stayed at 0 but the nitrites climbed to .25. Dealing with it same as the 55 gallon.
So 'instant or clone' I have a problem saying.
Shortcutting the cycle is more like it.

(If you're talking about a mature established tank / filter 6 months or older).
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