I currently have a 125 gal tank with 3 emperor 400's running in my fish only tank. no reef tanks in hawaii. I have decided I want to move to better filtration and I was wondering what size wet/dry I should get. specifically dimensions or gallon size of the bi-ball container. I know the sump can be any size. I want to get a new in sump skimmer and uv filter for it. a refugium is out cause I can't get the algae sent here. I currently have about about 40 pounds of live rock. pain to get here, but I keep monitering craig's list for people getting rid of their tank stuff. anyway...thanks guys.