You could smother them with marine epoxy, and then remove the epoxy a little while later... you'll have a white spot where the epoxy was, but no more pocci! Or... just leave the epoxy there and let coraline grow over it.
I tried scrubbing them with a toothbrush, and surprisingly enough, that didn't work. I thought it would kill them for sure. Of course there's a frag that I've got from Dez 4 times now that I'm careful not to vibrate too much in transport... and I can't keep the damn things alive. This leads me to believe that Doug might be on to something here... lol
Another option... if the rock is removable without screwing your scape... turn the rock upside down and torch them with a bic lighter... I'll give that one the Murdoch guarantee!
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