Make sure you thaw those mysis cubes first :)
I put a mysis cube in a stolen Applebee's ramikin and put that inside of a piece of tupperware (cause I don't like the smell) and stick it in the fridge to thaw. Then you just scoop out a bit of the shrimps and dump them in. It depends how many fish you have, I use about 1/2 of a cube every other day for my 2 little false perc clowns and that has worked out well for me. They go crazy for the mysis. I think fish are just pigs and will always act like they're starving. My dogs do that too. It's easy to over feed because they always get so excited to see food and cram themselves as quickly as possible. Well, I guess I do that too sometimes. Hmmm.