"PE (Piscine Energetics Brand), 40oz. Frozen freshwater mysis shrimp for fresh and saltwater aquarium fish Mysis diluviana are an excellent food extremely high in nutritional value Induces an energetic feeding response in even finicky aquarium fish PE frozen mysis encourage exceptional appetite and growth - even in finicky aquarium fish! PE Mysis diluviana boast naturally higher fatty acid profiles and Omega-3's than enriched brine shrimp. PE Mysis are harvested live from pristine glacial lakes in Canada, flash frozen in premium condition with no binding agents or fillers. PE Mysis are an excellent food source for all freshwater and marine tropical fish that induces an energetic feeding response in aquarium fish."