I just set up a 75 gal and I want to make certain I have enough filtration so in case I end up with a heavy bio-load. I have about 25 pds of live rock and pobably about 30 pds or so of base rock. I have a crushed coral bottom but its just enough to cover the bottom, not even an inch worth. I have a prism skimmer and a marineland rated for about a 30 gal that I run chemi-pure in. What does eveyone think of this? Enough or not? I don't know if should get a bigger skimmer, or get a canister filter or just leave it alone b/c anymore equip would be a waste of money? My parameters right now are fine but I only have 3 small fish inthe tank with mushrooms.