sera O-Nip Nature is the treat without dyes and preservatives consisting of gently manufactured tabs that can be stuck to the aquarium glass by slight finger pressure. This allows watching even shy fish while they are eating. The adhesive tablets are characterized by their high percentage of food organisms: besides bloodworms and Tubifex, sera O-Nip Nature also contains 7% krill. Due to these ingredients, the tabs are very rich and particularly valuable for an appropriate diet. Natural ingredients as well as a high, easily digestible protein amount support healthy development, splendid appearance and appropriate behavior.