06-24-2007, 11:03 AM
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funky levels in new freshwater tank
So I started a freshwater 29 gallon 3 days ago. I'm using a Penguin BioWheel. I seeded the filter with gravel from the Petco tank where I got my 4 glolite tetras, pleco, and corey cat. This morning, I noticed that the corey cat was dead... presumably killed by the pleco in competition for the one cave I put in the tank (stupid)... at least I think that's what happened. Anyway, that prompted me to double check the levels... amonia is still close to zero... it hasn't had time to build up (at least in my experience that's taken at least 5 days). BUT... I had NITRITES! I don't even know why I checked, but I did and I do. Between .5 and 1 ppm. Was this probably from the bacteria that transplanted from the gravel? If so, where did they get the amonia to make that much nitrite? Thanks.