I am in the process of setting up my new to me 125 gallon aquarium. It has Fluvel 305 and Magnum 350 canister filters, and a HOB
350 filter. I also have three power heads that used to be connected to an under gravel filter; however, it the filter broke before I got the setup. Could you help me decide wether I need it or not? My current plan is to stock it with 6-8 Silver a Dollars, a severum, and a couple of Hoplo catfish.