I am fairly new to the hobby. I have a new 90 gallon tank I am looking to put cichlids or oscars or peacock bass in it . What is the best option for quiet filtration? I was wondering if hooking a canister filter to a under gravel filter would work good but I have never seen it done. I would think pulling all the water through the gravel would help the breakdown of particulates. I don't like filters that hang on the back of the tank .any advice would be appreciated.