I just started to make my own, the fish seem to love it. I used shrimp, smelt, some formula one pellets, dried seaweed, romain lettus, brine shrimp and some flake food. Mixed it in the blender then put it in gallon ziploc bags and put it in the freezer.
Next batch I'm going to try and find some squid or maybe even some talapia(sp?) I spent 24 dollars and got 3 gallon bags 1/2 thick.