Aqua-Pics Oase Hel-X Rolling Bed Filter Media 5L - Premium Bio Purification

Hel-X Hi performance bio medium was developed using professional industrial waste water treatment technology. Designed to maximize and protect the internal surface area to maintain a stable bio-film. The unique Hel-X helical geometry, which additionally offers low flow resistance, in a moving bed process. Offering micro-organisms an optimum ambient conditions for nitrification process. Surface area of (859m2/m2)