The problem I ran into is, that no matter what fish/animal you get its seems to be hit or miss whether or not they will eat it. I had a lawn mower blenny, supposed to eat HA, never touched it. I did buy a sea hare and he ate it just fine but died with in 3 weeks or so. Not sure why. Was warned by my LFS that sea hares can "nuke" your tank when they die so I decided to fight the problem and not take a chance on another one. Some say turbos love it, mine never touched it, even when trimmed short. Good luck, sorry I couldnt be of more help. You might have better luck with the lawn mower blenny than I.