The stick-on chips for healthy variation and exciting observations Due to the amount of 60% bloodworms in the core, sera Bloodworm Snack Professional is virtually irresistible for the fish. A desired nutrient supplement that attracts even animals that are otherwise rather reluctant and shy. After soaking them briefly, the gently co-extruded attaching chips can be easily attached to the aquarium glass. The fish then enthusiastically pick off these treats bit by bit and thus allow for exciting observation opportunities. However, the quickly sinking chips are also excellently suited as a healthy variation for all bottom dwellers. The easily digestible snack is entirely free from colorants and preservatives. And the high amount of 60% food organisms in the core of the bicolored food wafer makes the chips particularly attractive and valuable.