I've never seen krill mentioned anywhere as a betta treat. I've heard of freeze-dried bloodwarms (I also use those), other types of warms, misquito larva, wingless flies, your basic pellets, ect ect. But I never heard of freeze-dried mini krill being used. Is it safe? I found it at petco and have been using it in place of freezedried shrimp. They seem to love it as much as anything. I'm just interested in knowing if anyone else here has used it for their bettas.