I've never had luck with boiling water, by the time I get it into the syringe and into the tank, the water isn't even hot enough to **** them off :razz: . I use kalk paste and the nifty syringes that come in the salifert test kits

excellent luck with this as well but with a bit of a twist, boiling water only, no prime...gotta be fast or yeah, that boiling water will not be hot for long. i use a 10-20ml syringe with a piece of air line tube on the end for accuracy. after you shoot the aptasia, suck the remaining tissue back into the syringe. now go out and get a few peppermint shrimps!! :)

I mix concentrated kalk with a "reef chili" sort of frozen food I made for my Corals. It induces a feeding response when you poke 'em, they stay fully extended while you fill them with kalk, I do about 10 at a time, then sit back and watch them explode. I only do this with new rocks or frags, I actually don't have Aiptasia in my system, none visible anyways, the Pep. Shrimp works.

I havent had any luck with anything :( I am not trying super saturated kalk, mixed with my sea salt. having trouble findling peppermint shrimp locally (calgary) so will do this.. so far the aptaisa have not come back. but I am sure they will with a vengence :)

I have removed some rock and killed that way but its impossible to do it all that way.