05-03-2012, 05:12 AM
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Originally Posted by Byron
I'm not seeing where the nitrite came from. It might be possible that adding too many fish could do this, but I have added dozens of fish to tanks and never seen ammonia or nitrite above zero due to the plants.
Have you checked your tap water? One of our members had sudden nitrite and it turned out to be in the tap water that had never previously indicated nitrite. You want to cover all bases.
Another possibility is something happening in the substrate. Nitrite does normally occur in some biological processes, it is very complicated and i can't begin to explain it as i don't fully understand it; but it is another possible. And the filter maybe...?
I have no idea Byron, I think combination of too many fish and over feeding, plus the almighty amount of stress that the new fish (which has now gone back to the LFS) caused in the tank etc. 2 water changes yesterday and a heavy dosing of prime too and this morning nitrite is not registering soo looks like things ate settling down!
Lesson in fish keeping learned!