Fine granules with natural astaxanthin (50 mg/kg of food) for Betta sera Bettagran Nature is the easily digestible color food without dyes and preservatives for labyrinth fish such as Betta. The color development is supported in a directed and natural way by high quality ingredients such as astaxanthin (50 mg/kg of food) from Haematococcus algae. Prebiotic ingredients additionally support disease resistance. It contains insect meal as a high quality protein source which is also resource saving. The slowly sinking soft, fine granules quickly become smooth in water, but keep their shape very well and do not pollute the water.