Heyya folks. I just picked up a small piece of LR with quite a bit of growth on it. One of the organisms appears to be a large whitish/creamish sponge that is over most of the rock. I was told by the LFS person just to kinda "squeeze" them to get the air bubbles out. The other, also a sponge I believe, is bright neon green, and there's 2 of these about the size of a nickel and 3 or 4 more about the size of a pencil tip (they're so bright you can't miss them). Any sort of husbandry I should know of, or should I scrape the sponges off with a toothbrush? Also, if they are dying, will my shrimp (skunks) start picking at them? Thank you.