I know these are cheap and some people don't like them but we really liked our peppermint shrimp and my kids are quite sad he died. My wife noticed a fish picking at something on the bottom of the tank and there he was upside down. He was one of our first additions and he always came out and ate out of my hand. He did molt about 4 days ago but seemed to be doing fine so I don't know why he went. Before I could even get him out though my red serpent start came out from under his rock and grabbed him. Checked all my parameters and everything is in check, my cleaner is still doing his thing. Are peppermints not as hardy or should I have been feeding it anything other then frozen Mysis, brine, pellets and flakes?