I have a 55G saltwater tank with 2 clownfish, blue tang, yellow tang, blue green chromis, domino damsels, snails nd a hermit. I have live rock and argonite for my base. I currently have one fluval 305 canister, Im not sure i like it too much....i feel like its constanly drity. Any ideas for a proper filter and media for the filter? I want my water to be crystal clear!!