I'm assuming that's what this is. I picked up a couple nice sized pieces of LR today and found these when I got home. So far, I count 3 of them. I've never had them before, what to do? Besides "kill it with fire"! I swear I could pluck them out with forceps, but I've read this is not the thing to do.
I squirted some lemon juice into them with a syringe. They haven't popped out since, but I may have just ticked them off. Everything reef safe OK with peppermint shrimp?