Intesifies and Increases the brightness of the red coloration in Flowerhorn Cichlids Essential fish food that magnifies the red coloration of all flower horn breeds—specially processed to help the fish grow more radiant and healthy. The high content of spirulina and krill exerts other natural color-enhancing elements that will improve the fish's redness in only 7 – 10 days. Unique immune substances are added to increase the fish's resistance to diseases.