Cobalt Brand Mysis Flake Fish Food A Mysis based, palatable formula helps freshwater and Marine finicky Fish to eat, with Omega 3's and Astaxanthin for growth and color All flakes are fortified with Probiotics to support a healthy digestive system and Less waste, the Blue Flake is a rich Vitamin/Immune Flake Bigger for Aquarium, healthier fish with less waste for a cleaner aquarium; Will not cloud water