Hello I recently ordered a standard 180 gallon. I have no sump experience ever and would rather just use canisters. I currently have one Fx5 and was wondering if two would be enough filtration? There would be two powerheads as well. Stock would be one Oscar, one Jaguar, eight Clown Loaches. The media in them would be that Fluval Mech in the bottom two baskets and the eheim efhistrate? (I think thats what its called) in the top. Thanks!