Your hands and an algea scraper is the best clean up crew for an aggressive tank. I don't know how many times I have to say it but YOU CANNOT HAVE INVERTS IN AN AGGRESSIVE TANK! Bo
I put a 4-5 inch lawn mower blennie in my tank and he has been doing a great job. Eats all the hair algae off the rock and even the brown algae off the glass in some spots. Looks like a different tank.
Portugee, I wouldn't be suprised if your Lawnmower Blenny is dinner for the Volitan one night in the NEAR future. They get up to 15'' and can swallow fish half their size whole!