Shoot in my fuge I 'm using about 1/2 of a 55 gal sump as a fuge. I have 2 24" regular florecent lights, 2" LS about 7# of LR with about 5 different plants that I got from my LFS. No need on adding critters to the tank. After it mattures you'll start to notice a few critters starting their nesting grounds sort of speak. Once in a while you might want to add just one or two snails to help with the algae on the glass. But again the fuge isn't really anything that you want people to see. It's just for helping to low nitrates and create pods for the display tank.