Why does my red emerald crab stay right next to my anemone? It looks like he is picking at him at times. My anemone has been doing really well for the last month or so. He finally came out of the cave he had been hiding in and the clowns have been hosting non stop. He has been really full and active, loving the lights and flowing in the current. This morning he has drawn up to strings and the crab appears to be picking at him like he's trying to eat him. Is this normal or should I be worried?