sera Discus Color Blue is the color food consisting of carefully manufactured soft granules for green/blue discus fish. The balanced combination of Haematococcus algae and natural minerals supports the development of this color range in a directed way. Disease resistance healthy development as well as fertility are enhanced by optimally digestible aquatic protein omega fatty acids and trace elements. When moist the sinking granules quickly become smooth without swelling or losing their shape. The water is thus not being polluted.