Though I’d be willing to bet you’ve never heard of Piscine Energetics, Inc. (PE), I bet you’ve heard of mysis shrimp. A Canadian company, PE produces aquarium foods based on sustainably harvested mysis shrimp. Their freshwater line consists of flake, pellet, and frozen formulations of mysis as well as a cichlid version. They also produce a line of calanus products. I have fed PE mysis pellets and flakes to my fish and they loved them.