I know there are like 5 topics on this question, but I would like to be specific. I have a 55 gallon tank, and I am planning to load the hell out of it (not overcrowd) with fish. I have a seaclone 100, but I admit it is kindof a wimpy skimmer. What would be a sufficient hang-on skimmer that can handle a large bio-load? If you have one for sale, please tell me!