Debelius Lobster( Purple Lobster)

I have a Debelius Lobster in the aquarium. Any one have these in their aquarium? I have only seen it active after the lights are out and it is dark. It is also called a Purple Lobster.

 

cI don't know what others feed their "Lobster" but I have fed it salmon, shrimp (cooked, frozen and fresh), halibut, Crab(cooked King, Dungeness, and Tanner), frozen deer heart and frozen clam meat. It has molted so I know it is growing because I have found its shell. If you don't have one get one they are really cool. Cheers.