Key Features Helps to remove ammonia and nitrate Can be used in all types of pond filters Increases efficiency of filters Can be used in moving bed filter systems High surface area to allow for more bacteria to colonise. Perfect for use with Evolution Aqua EazyPod and Nexus filters.. Provides 500cm 2 of Surface Area for every 1m 3 of K1 media used Evolution Aqua K1 Bio Filter Media is suitable for use in mechanical and biological filtration systems. The Filter Media provides large surface areas for good bacteria to colonise and this increases the efficiency of a box, pressure or multi-bay pond filter. K1 media is engineered in a wheel shape and has a slight neutral buoyancy. This allows the media to circulate throughout the vessel with only a minimal water flow. The media provides the maximum active surface area for the bacteria to colonise, much more than other types of static media. It is this process which removes harmful ammonia and nitrite from the water. Within the wheel is a
