12-23-2012, 06:07 PM
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Originally Posted by cpwebsite
To start, if your tank was setup for over two years but had not fish in it then it'll lose its cycle. It needs constant fish inside of it, or if it doesn't have constant fish it'll lose its cycle.
Spend $10 and get a gravel vac and do a 50% water change weekly for a month with the gravel vac (assuming you have no fish).
Also, while corrie are schooling fish, try getting 2 and then wait a month and get 2 more. Or you can get all all 6, but dose prime daily for a month to remove cycling issues.
there WERE fish in the tank, just not many. Actually I can't remember my stocking levels at the points when I've had corys, but the first lot, I think I just had a gourami (a leftover from before I really understood about suitable tank sizes. She died suddenly from stunting after a year.) The second lot of corys I tried, the peppereds, I had at a time when there was a group of about 10 - probably more - small shoaling fish in the tank (can't recall whether I still had a gourami at that point.) I would have thought that the latter nubmer of fish would be sufficient to maintain a cycle. The first lot of corys don't really count as the tank had only just been set up at that point was still cycling.
good advice about adding the fish slowly. I'd get a gravel vac except I know the heads of those things are quite large, and my tank is so planted up there's very little freely accessible gravel. Even just siphoning with a small tube, I cause quite a lot of disruption to the plants. Thinking of making one myself.
anyway, I won't be getting corys again for a long time because my tank is currently completely stocked, and it's a nice setup :)