by stoli on Mon Apr 16, 2001 9:05 pm
usually tanks tend to smell if they are not being filtered correctly. as S42K said, the biological bacteria colony is not established very well. it might not be establishing because you clean the filters too often, not allowing bacteria to develop and stay in the tank, but it is probably because you need more filtration for a 55 with 2 oscars. if you get another filter, this will help out a lot, and you can alternate weeks cleaning each one, so you always will have some bacteria taking care of business in the tank.