Laser's don't work. I had a conversation about them with the guy who originally posted about it on RC. He said that in the beginning it seemed to work, but now looking back and knowing what he knows now. IT DOESN'T WORK.
You can only get the smaller ones close to the glass and the others will just pull into the rocks when they start to get burned and you see them back out in a week.
He told everybody don't waste your money because they're not worth it.
His post on RC was called "A real Aiptasia Laser" if anybody is interested and wants to cross check me. He posted on the thread too.
I agree. The laser only works when you have a clear shot. I find the best results when removing the dead “aptasia sludge” with a pipette. Turn off the flow as well. Water cools things fast!