So my v. lionfish accidentally eaten a prawn(which I was giving to my demsel). It is the first time it has eaten anything death in 5 weeks. I was only feeding it live food. So I hv read that krill causes lockjaw so is prawn and krill are same? Also what other frozen food can I feed it? I know death food is not so good for them so I'll only feed frozen once in a 2 week.