PE CALANUS are a decapod zooplankton sustainably harvested in pristine arctic waters. Instantly recognizable by their brilliant orange coloration stemming from the high levels of astaxanthin and other carotenoid pigments, PE CALANUS are naturally bio-encapsulated with essential fatty acids, resulting in a highly nutritious diet for your aquatic organisms. In addition to being an excellent food source for all varieties of freshwater and saltwater fish, PE CALANUS are also a fantastic choice for corals and other filter feeding organisms. PE CALANUS is now available in the popular, convenient, and user-friendly blister package. Each 4oz blister package contains 35 individually sealedcubes insuring freshness and prevention from freezer burn. – See more at: http://www.mysis.com/about_pe_mysis_products/pe_calanus_frozen/#sthash.XtCL4kiw.dpuf