I nearly bought one, but I read really conflicting stories of them actually working vs. just causing the aiptasia to stress out and multiply faster.  Chad has one (CRWreef) you could PM him.  I ultimately settled on Mrs. Wages Pickling Lime powder at Wal-Mart for $3.  Mix 1 tablespoon with just enough water to make a thick paste and put it in a syringe and apply to the aiptasias.  It worked very well for me, and for that price it beat the cost of a laser 100 times over.