Convenient twin pack of frozen PE Mysis & PE Calanus (4 oz blister pack of each) * Mysis shrimp offer excellent nutrition for all freshwater & saltwater aquarium fish * Calanus zooplankton rich in natural astaxanthin is great for corals and filter feeders Sustainable, highest quality aquatic food delivers premium natural nutrition for growth and color enhancement. Piscine Energetics Mysis & Calanus Twin Pack offer discerning aquarists, convenient access to nutrient-rich frozen mysis shrimp AND calanus zooplankton. Great for all freshwater and saltwater aquarium fish as well as corals and other filter feeding organisms. PE Mysis, a high protein and highly palatable food source induce an energetic feeding response in even the most finicky aquarium specimens. 4 oz blister pack. PE Calanus boasts naturally high levels of astaxanthin and other carotenoid pigments to support vivid natural coloration. 4 oz blister pack. DIRECTIONS: PE MYSIS can be fed to your fish directly in frozen cubes or poured into your aquarium after thawing. If thawing is the method of choice, pour off all the liquid to get rid of excess oils that tend to precipitate out of the shrimp prior to feeding. DO NOT RINSE. Please remember not to over feed. Only feed as much shrimp as your fish will eat in two to three minutes.