This is a freshwater shrimp that comes fron cold polar lakes in Canada.Mysis contain relatively high levels of fatty acids and significant levels of highly unsaturated fats (HUFA's). Freeze-drying ensures that the nutritional quality is largely intact when fed. Typical analysis for Freeze-dried Mysis: Protein, minimum 48%; Fat, minimum 38%; Ash, maximum 8%; Moisture, maximum 6%.