01-31-2010, 11:13 AM
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Originally Posted by Cyanide
Wait, I'm confused - one danio per 29 gallons? o.o Maybe I misread. Anyway, I think Yellow is in the process of dying. He gave up and refused to even go against the current of the filter thing - he's just lying at the bottom of the tank. He also still refuses to eat anything, and the other fish are just ignoring him, eating and swimming about. There's nothing more I can do for him as far as I know. :( I don't know why only he was affected by the nitrite level...
No but min. 29 gallons for a group of danios. Really if you can't get a bigger tank you should take those danios back to the LFS and get something way smaller. I don't know of anything in particular that could be in such a small tank at a low temp, but someone else might.
Your nitrites will go up rapidly because of the small tank size. Test daily using a liquid test kit, and do water changes when the ammonia or nitrite levels above zero. Keep the plant in there as that could be helping absorb the ammonia...if you take it out, the ammonia level could go up and resulting in an even higher nitrite spike. And avoid overfeeding, you fish will eat when he's ready. That's another thing that will contribute to nitrite spike (indirectly).
@MeanHarri good call on looking at the tank specs... I guess that's why there's the sticky with questions on what to post when you have tank probs.