serpent star question

[bluesox68]

Ok so in the last 2 days my wife called me at work to tell me that my serpent star ate my good sized emerald crab and then today my medium cleaner shrimp I put him in my refugium with 15-20 lbs of LR and cheato but will he eat my pods? I keep my system well fed and checked my water to make sure they didn't die then ate them. Just confused because I don't want my other shrimp to be next even though that one lives in the same cave as the star and it would seem they are buddies? Any thoughts?