I noticed what looked like my skunk shrimp had molted again. As I was looking for it to verify it had not died, I noticed it was not in its usual spot. My wife located it, and I noticed that my emerald crab was enjoying it for lunch. It is now being devoured by the damsel and emerald crab. I have had cleaner shrimps and emerald crabs and have never seen this behavior. Is this normal? Do I need to feed the emerald crab more? Do people spot-feed emerald crabs?