Made from an ultra high surface area inert ceramic. Specifically designed to house beneficial bacteria that will eliminate ammonia and nitrite in aquariums and ponds.
BET Method surface area analysis has determined the effective surface area of 3D Filter Medium to be in the range of 1850m2 1 litre, far surpassing other biological mediums in the market.
Innovative Three-Dimensional Open and Interconnected Pore Structure offer little resistance to water flow and pro-long water retention time.
Combination of vast surface area and interconnected pores allows a thin bio-film to develop. Create ideal colonization conditions for billions of beneficial bacteria.
Due to high concentration of beneficial bacteria, peak ammonia and nitrite levels are more easily reduced.

Please rinse the products with tank water several times before use.
Suggest to pour nitrifying bacteria into the filter medium and open the filter. If it's possible, do not use net
bag in order to achieve better filtration performance.
1 Liter for 500 Liters (125 US gallons) of water. 15Liters for 2500 Liters (625 US gallons) of water.
Do not clean or change all the filter media together (and never clean too rigorously).
The cultured bacteria must not be completely destroyed, otherwise re-colonisation will be retarded.

1.PH：7-7.5
2.Porosity：40〜65％
3.Water Abosrbency：38〜78％
4.Density：0.30〜0.80 g/cm
5.Coefficient of Permeability：0.8〜2.2 cm/sec
6.Diameter：approx. 23X20mm