It's a 40 Gal SW with about 60lbs of LR. 2-3 inch crush coral bed. Both soft and stony corals, small clown and a small damsel, 2 shrimp, 2 sand sifter star fish, and a number of crabs (can't really count them). I do a 5gal water change about once every two weeks. I'm running 2 PC (192W...