Evolution Aqua Kaldness Biomedia K1 3 Litres
The Kaldnes Moving Bed process has been scientificallly tried and tested in fish farming and waste water treatment for over 10 years.
The media is engineered in a wheel shape and is slightly buoyant. This near neutral buoyancy allows the media to circulate throughout the filter with only minimal water flow.This flow is created with your air pump and air stones or diffuser etc.
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