Decorator Crabs and Coral

[plp]

My decorator Crab likes to remove polyps of some of my coral (Zoos - Green Center). The question is two fold. Will the polyps grow back on the rock? Will the polyps the crab has stuck on his back live and grow? It almost makes sense it could be a means of the corals spreading when the crab molts.

 

[al mc]

Answer....Yes ans yes. The decorator crabs do some damage, but the corals (polyps) can live on them and they can help spread them around your tank.