Supplementary feed for ornamental shrimp, snails, crayfish and crabs in the aquarium / terrarium. With the GlasGarten Mineral Hearts, you can supply your Shrimp and friends with minerals for a longer period of time. Simply put a Mineral Heart in the aquarium and the minerals are nibbled off by the animals. The minerals content into our Mineral Hearts are also gradually released to the water and can thus improve the microbiology in filters and soil. For a successful moulting for shrimp, crayfish and crabs and against pitting in snail shells. Snails also use minerals to repair existing housing damage. The Mineral Hearts can remain permanently in the aquarium until they have been eaten or dissolved, they do not pollute the water. The GlasGarten Mineral Hearts are made of 100% natural ingredients. Minerals have a direct impact of the Hardness and Conductance of a water, so it may increase with the use of Mineral Hearts, wich is desirable and safe for recommended feeding. Feeding recommendation One Mineral Heart for about 15-25 Liters of Water. Spent Mineral Hearts can be replaced. Basically, the Mineral Hearts should last at least several days. If they are eaten faster, the animals are very hungry and the regular feeding with a main food should be raised. Ingredients Minerals (97%), Chlorella algae, peppers, asian cabbage, squid, fennel Content 8 pcs. Mineral Hearts (corresponds approx. 6,7g) Dimensions Diamter: approx. 1 cm Height: approx. 1 cm Made in Germany