I am a new reef tank enthusiast. To start off, I have a 12 gallon nano tank, with about 8 pounds of live rock inside, along with 4 hermit crabs, a peppermint shrimp and a yellow tail damsellfish. This was a previously established tank that a friend of mine is letting me "get my feet wet" with. So far i love the tank. Specific gravity is a little high though, and there is some algae growing on a couple Of the live rocks. Anyone have any pointers on how to clean this up without taking them out of the tank? Any feedback would be greatly appreciated!


