I'm in the process of acclimating a new yellow polyp rock and suddenly I see a white (possibly slug-like) creature in the bag. He is pretty much all white and is crawling in the bag like a snail(although it is not a snail). Any ideas???
A nudibrach,or sea slug?Some are reef safe and others will eat corals.The problem is that there are hundreds of these little guys and they all eat something different.I would not chance it,don't put it in the tank.