my retic seems very healthy and very active. My issue is that when I watch him eat, I notice that it takes forever for him to eat krill. i mix in blood worms which he vacuums up, but the krill seems to be trouble. I was under the impression that rays had strong jaws. mine doesnt seem to be able to chew pieces of krill up. I dont think he even eats them. do I need to cut everything up into very little pieces or is it normal for a retic to take forever to eat a single piece of krill?