Or alternatively, just turkey blast them daily (like what Sanjay is doing) and hope the hungry wrasses will pick up on them [/B]
This is how I got rid of them. I had an infestation in 2004, when they were first being noticed by aquarists. I blasted the acros everyday and employed two leopard wrasses and a solar wrasse to pick them out of the water column.
They got wise to the baster, and made certain that a single acroflattie never landed after getting blasted waterborne. Over time the numbers diminished, and they eventually disappeared. I have never had them since.
A few observations I made during that time.
1. They avoid bright light. They tend to congregate on the bottom of acros, and shaded spots.
2. Big frags or colonies tend to be the mode of transfer. Try only getting frags from the tips of colonies.
3. They like smooth acros, particularly tricolors (they love these) and validas.
4. They are easier to spot at night with a non-LED flashlight. LED flashlights will work fine, but a Surefire would be best.
5. They're pretty easy to blast off a coral with a full-sized turkey baster.
The next time I'm in town, I'll give you a frag of my tri-color humilis. It was a survivor from that period. It's my coal mine canary. It attracts acroflatties like a magnet, and can withstand being eaten by them. It's a tough bugger.