fishdying

Help! About 2 months ago I decided to purchase a 55 gallon tank and start a tropical fish tank. I set it up, let it cycle for two weeks and then slowly started to add fish. I have about 25 (all tropical) fish in there now, and 4 snails. There was a slight bacterial bloom a while ago, and my...

I have a 20 gallon tropical community fish tank. In the past 24 hours I have lost 2 guppies, a male betta, a serpae tetra, a neon goby, and a peacock gudgeon. My ammonia and nitrite is zero, my nitrate is 5ppm. The temperature is 80F. Other fish in the tank are fancy guppies, red tiger platys, a...