Its a metacubeWhat's that breeder box you're using?
If you had nothing else, I would be trying crushed flake rather than yeast. I am assuming that the larval stage of these shrimp would be no smaller than those of peppermint shrimp which are readily able to hold, and eat, larger food items - I suspect that yeast would be too small.What's your thoughts about feeding the bubs bakers yeast?