Check out Will Lutman's DIY zapper. Or kalk paste. Or vinegar injection. Or boiling water or flame thrower or. . . Sorry.
BTW, does this mean I should remove the RSMs that just took hold on my back rocks? Jeppun21 warned me but. . .
What is RSM?
Is RSM the most annoying (invasive) of all the palys?
If its on a single rock just trade it in at a lfs.. They are hard to kill
It is a single rock but I have other corals on that rock.have u had experience with them?