GRANULATED SOIL FOR AQUARIUMS Russian patent published in 2015 - IPC A01K63/00 

FIELD: agriculture.

SUBSTANCE: granulated soil, designed to create a favourable environment for development of aquatic plants and fish in the aquarium, is made on the basis of organic sapropel preliminary severely frozen and dried to a moisture content not exceeding 5% with an ash content not exceeding 50% and a particle size of 0.25-0.5 mm and gypsum with a particle size not exceeding 0.1 mm in the following ratio of components, wt %: sapropel - 45-50, gypsum - 50-55. And the granules are round-shaped with the size of 3-12 mm. The soil is characterized with the bulk density of 500-600 kg/m³, and the strength of at least 20 N, and the ratio of N/P as 1/10-1/20.

EFFECT: reduction of risk of entering into the aquarium environment of pathogenic bacteria.

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