What do you all suggest should be the "range" of tank sizes for these types of filters? In other words, would you say one should use a HOB
filter for 5-29gal and a canister filter for anything more than that..? Or.....? We currently have a 20g but will be setting up the 50g soon and want to know the pros and cons of canister vs. power filters. I used to have a 44 hex tank w/ a HOB
power filter and it was fine.... but that was a few years ago and I have recently been told that a canister filter would have been even better. What are your thoughts?