I have had 2 small 30-gallon tanks for a few years now. I have always used Emperor 280 power filters on these. I just got a 100 gallon tank I have 2 heaters for it a 300W and a 150W. I also have one extra Emperor 280 I can put on it. My question is what would be good filtration for my new tank? Would 2 Emperor 280 filters be good? Or should I get a canister filter? Or what?