my fish love crickets, the arowana and the snooks like em best.. but i only buy crickets about every other week for the lizards.. so it's only a treat at the very most.
the rest of the time we feed frozen krill, raw tuna, beef heart, brine shrimp, bloodworms, market shrimp (61-70), silversides, turkey and chicken hearts, various kinds of muscle meat (mostly beef and poultry).
We've tried mysis shrimp, but EVERYONE in all of the tanks HATES it, so i didn't buy anymore. And we have some fish kibble and flake food that was given to us.. none of the fish like it, only the guppies and mollies will give it the time of day.