It seems to be a hit and miss thing with any algae eaters. During my tribulation with hair algae, I had enough to feed a cow, but only some of my algae eaters would look at it. I had 7 emerald crabs, 35ish hermits, a regal blue tang, and a bi-color blenny. All of them are supposed to take an interest in algae (at least, according to some people), and only some of them did. The tang worked on it a bit, and the emeralds did as well. The hermits didn't seem to do me any good, nor did the blenny. I figure the blenny was helping somehow, though, because he didn't eat for 3 months and somehow never got thin from it.
92-gallon corner tank, 100lbs of LR
, 140lbs of sand, 250watt 10,000K MH
, 110watts of actinic PCs, Mag 7 return, custom refugium, AquaC EV180 w/ Mag 5
Female lyretail anthias, eyelash blenny, tomato clown, saddleback clown, firefish goby, 2 sand-sifting stars