Aptasia

[Captainhemo]

I wasn't suggesting basting the entire rock, just the aptaisia. Put the turkey baster directly over it and let some boiling water deal wit the aptasia then try to suck up all the remains.
Lots of people do this in the tank, I only sugested removing the rock to lessen the chance of spreading any remains around the tank.
If you don't like that idea, you could try njecting them with lemon juice, many ppl have good success with that