List of filtering corals and algae eaters?

[Themonsterisme]

Looking for a list of sorts of all of the water filtering corals available...also wondering if there was a list of all the helpful water filtering and also algae eaters known to be benificial ..example: lawnmower blenny,lettuce nudibranch,scallops,clams etc etc

 

[nathan1986]

By far the best algae eater I've personally used was a sea hare. My 55g was literally engulfed in green hair algae.. covered rocks, sand, over flow and 3 sides of the glass. In 6 days the sea hare cleared about 90% of all the green hair algae. Best $25 I've spent, once his job was done i returned him to the LFS for some store credit