sera Cichlid Green XL is the staple food consisting of carefully manufactured granules for bigger cichlids and other big fish that mainly eat plants and periphyton. The high percentage of Spirulina algae (10%) as well as other herbal components such as spinach support optimal coloration as well as healthy digestion and general development due to their carotenoids minerals trace elements and ballast substances. The floating granules keep their shape for a long time and do not pollute the water.