I just recently stole a 180 gallon tank, stand, several filters and powerheads. This was formerly a salt setup so it has a wet/dry filter, a couple of hang on the back of the tank filters, a protein skimmer and assorted other small goodies with it. I'm planning on setting this up as a freshwater tank but am not sure what to do about filtration. Should/can I use the wet/dry setup or should I look at a more traditional filter system for this tank. None of the hang-on filters that I received with this purchase are of sufficient capacity to filter this tank properly, even if I use more than one. I've had a 75 gallon setup for years but am new to a tank that is big enough to bathe in!! Thanks!!