Emerald Crab Eating Polyps

[cbayer]

I saw my emerald crab eating polyps off my electric Lime green birds nest. Is this normal or should I get him out of the tank. I noticed he cleaned out a whole little section on it.

[alton]

I have never been a fan of these. They will clean the coraline algae off of a rock if given the chance.

[emac]

i caught my emerald eating my sun polyps. i took him out.

[villjr]

I always suspected my emerald was eating my zoos. After he died, the zoos stopped disappearing.