What do you keep in your frag tank? I am having some issues with algae growing on my frag plugs and wonder what fishes do you guys keep to keep that under control? I already have snails in there but they mostly stick to the glass. I am thinking about putting in my yellow tang in there because that guy is just a mower when it comes to algae. give me some recommendations, its a 40b bare bottom, 30 gallon sump, and 30 pounds live rock.