I have two of these guys. Proven aiptasia eaters, definitely not camel shrimp. I got them to get rid of my aiptasia, which they did with gusto. However, I have a smaller tank, and they eventually started picking at my frogspawn, so now they're in the sump. Aiptasia is long gone. Good news is they were really easy to catch.
$8 each.
ps - sorry for the crappy picture
$8 each.
ps - sorry for the crappy picture