As I've already stated I work at a pet sotre, and I want an opinion of what's concidered the best filter for what kinds of seniero. I've found the bio-wheels are great I've been very pleased with them, but I've hear aquaclear is pretty good for bacteria. Also what about undergravel filters? I would like to hear an opinion on which is concidered better.
-thanks-
shells
-thanks-
shells