It's a Molly Miller Blenny. Here's a write-up on it.
There is growing evidence that this blenny may be yet another valuable tool in the war on pest anemones in reef aquariums!
www.reef2rainforest.com
Molly Miller Blenny is a good algae eater.
I recall visiting Verdell one afternoon and surprised to see that her tank was free of algae that I saw a week or two before. She had thick mats of algae covering up many of her rocks, but they were all gone. So I asked her how she managed to clean up so well so quickly. She told me that it was her Molly Miller Blenny (Beaslbob always called it Martin Miller, though).
Molly Miller is also good at controlling Aiptasia.
I added one in my old tank in the hope of eradicating Aiptasia about four or five years ago. Before I got him, I tried Aiptasia eating file fish that someone in the club loaned me. He ate all aiptasia, but the aiptasia came back after I returned him to the owner (and not before cleaning up my nice radioactive green zoa colony overnight.) The Molly Miller Blenny ate all the Aiptasia, and I never saw any sprouting back. He must have been eating them as soon as they tried to come out again from the deep crevice of rocks.
Aquatic Cove only occasionally had them, but Pete at the Aquarium Shop got them in quickly for me. Pete had a few good suppliers and could get any fish that I asked quickly. The fish he got me was always very healthy, too. I wonder if Tony's Aquarium can get them easily. Sustainable Aquatics used to captive bred them. They may still do.
