[YEE] Aquarium Biological Filter Media with Mesh Bag for Fish Tank and Pond, Fish Tank Filter

that cultivate and build up nitrifying bacteria quickly so as to give clean water system.

Scientific configuration, Rational combination.

It helps to cultivate nitrifying bacteria and stabilizes the PH of fish tank.

These are durable media that will last you for years and is small enough to fit in many hang-on-the-back filters. Just put it in a mesh bag and place it inside your filter.

Creates lots of surface area for bacteria

A scientific mixture used to purify water and resist algae growth.

It also relieves fish pressure and the smell of fish tanks.

Applicable to freshwater and marine environment.

【12 Filter Media】 These include volcanic rocks, medical stone, zeolite, coral sand, nanometer bacterial rings, infrared bacterial rings, biological beads, bio ball, activated carbon, infrared microspheres, ceramic rings and red breathing rings.

【Easily Improve Water Quality】 Placing filter material in fish tank and pond. The product can filter and purify water sources in an all-round way, improve the quality of aquarium water, resolve impurities, stabilize PH, clarify your water naturally and cultivate beneficial bacteria with these bio-balls, and create a good living environment for fish.

【Work as a biological filter media】:Aquarium bio filter is excellent interaction between air and water and gas exchange. The Bio-balls can give a nice home for beneficial bacteria where they can settle and be fed by water and oxygen. They will also promote gas exchange and increase dissolved oxygen levels. So as to form a good ecological cycle.