Looking for suggestions for an encruster of some kind for my overflow. I have a toothless, coast to coast glass overflow on one side of the tank that always just looks gross as film algae grows on the otherside of the glass. It would be nice to grow something there. That said, it'll have quite a decent bit of flow and light. I'm also just starting to dabble with sps so ease, and high growth rate are important as well. Anyone got any suggestions?