Help please..... I have a 55 gallon tropicak freshwater tank. I am doing something wrong. I have lost 25-40 fish this year. I am lost. I don't want to get rid of my tank, but I don't know what to do. I get my water tested and the store says it's ok, but then I clean my tank and things are fine for a few weeks and then the tank gets really cloudy or green, I clean it and lose fish. I am distraught. Any and all suggestions would be most helpful.
Thank you
Melody
