XRMXF Japan Aerator Ring Koi Pond Ventilation Oxygen, Japanese Air Stone for Koi Pond but also for Oxygen Enrichment in the Garden Pond (2 Loops / Diameter 25 cm)

This Japanese aerator ring is used by Japanese breeders for their koi pond, because this prevents dangerous oxygen deficiency as well as summer and winter, can also be used for aquariums and aquariums No additional weights required, as self-sinking, no risk of injury to the fish/koi Excellent dispersion of the air beads, as low resistance inside. Clogging or wear very low 5 mm thick hose, very resistant and durable, extra for all models - 5 m air hose 9/12 mm It is ideal for filter chamber ventilation as well as use in floating and fluidized bed reactors