Crab eating frogspawn???

[shoelaceike]

So I've been losing heads of frogspawn for a few weeks.....all my params are good and all my other corals look great.

Tonight I looked with a flashlight and saw a small crab, whitish in color clawing around a frogspawn....I couldn't identify it and it disappeared before I could get it out......any idea what it could be? Could it really be killing my fs? Or just munching at dead tissue and there is something else causing trouble? TIA

 

[Reefing Madness]