How to kill galaxia?

[OneFish]

My galaxia outgrew my tank a couple months ago and started stinging my SPS. I broke off the majority of the colony and sold it to a local reefer. A few heads had grown onto the rock itself and would not budge and have now grown a bit and their feeder tentacles are started to sting other coral again... Any idea how to get rid of the last few heads without harming corals nearby? The rock is on the bottom of my scape, so taking it out is not an option.

 

[Gareth elliott]

Galaxea is pretty sensitive to a screwdriver or similar sized stabbing utensil, the skeleton under each polyp itself is pretty weak.

 

[brandon429]

fire obliteration is an option
I have videos of it on tube on my ch

lr is absolutely not conductive its too wet and porous. I used to use a blue jet torch lighter on mushrooms until they were blackened coils...smoke came off lol. then press thumb exactly in the rock next to it, cold, as if it didn't just get sun blasted

because you can aim a jet lighter so accurately on a drained tank or lifted out rock, fire is a handy tool.

 

[HOOPDEEZ]

Frickin laser beams

 

[Jinko]

Break and chisel away what you can and cover any new growth with kalk paste.