Use of filler bodies in filters for purifying water of garden ponds, which are completely or partially made of biologically biodegradable artificial- or natural materials that facilitate colonization by microorganisms

摘要

Use of filler bodies in filters for purifying water of garden ponds, is claimed. The filler bodies are completely or partially made of biologically biodegradable artificial- or natural materials, which facilitate colonization by microorganisms. The filler bodies are not only used as an inert colonization surface but also serve as an energy and carbon source.