ok this is a new one to me it's a white sac like, lump like, nodule like thing on my live rock. I got this live rock a insanly low price but now i'm finding all sorts of problems like , Majano, and tons of bristle worms, so now i find this white lump and i'm thinking the worst, any idea? sorry no pic. but is' only one lump about a half inch diameter, almost like an egg sac-ish thing? definatly not ick.