I thought I had a dead shrimp today until I realized it had molted. I was surprised that it was a molt, since it must have been over night. I had seen the shrimp yesterday eating...then today I see it eating, but found the old exoskeleton. Just out of curiosity, do people leave them in the tank or remove them? I know lobsters sometimes eat their exoskeleton for the minerals, do shrimp do the same?