aiptasia

[bv_reefer]

-found a little 1/2'' aiptasia on the back of my tonga deepwater rock, and
it's a cycling tank so no corals for it 2 sting or anything but it's still ****ing
me off cuz i know it'll cause problems when it gets bigger(in very short time)
so any suggestions cuz i already tried blasting it with near boiling water and
he hid for maybe 2-3 minutes and popped bak up so that obviously didn't work
so any other suggestions? i heard that lemon juice works but i don't wanna
wreck my tank now, so any specific type or brand that anyone else uses/used?