CraigB7708
New Member
I do understand the nitrogen cycle since that is a newbie issue I know. Putting in a smaller tank for my daughter, put in some filter media from my tank to jump start bacteria. Now with nothing in the tank other than plants there should be zero ammonia right? 6 Neon Tetra's dead overnight and I just really want to understand why. I did a ammonia test after they died and it was below .25, and that is with 6 dead fish in it overnight. The water was treated with conditioner, heated to normal 75 so what could have killed them so quickly? It had only sat 3 days but I thought with the addition of old media it would help start the cycle. I was planning on doing a water test in the morning to look for NH3 spikes but they were dead by then. That's the part of the cycle I do not understand. This was not a Ammonia spike clearly based on the test but something else.
Thanks
Thanks