The most important question is what type of fish you keep. If you have a fresh water plant tank or a general low bio load, I recommend a quality canister filter like Eheim or RENA. Fluvals leak.....period. If you have Cichlids, well that's a different story.
Stereo and Fish tanks - noisy need help
I have recently added a 240 gallon freshwater tank in my listening room and it looks incredible. However it is very noisy and has taken away alot of the musical enjoyment. Is there anyone out there that is running a fish tank in their listening room? Is it quiet? What equipment are you using? Any feedback would to helpful!