glaX stoneis a second generation material with a very elevated filtration capacity. 1 l product has a useful surface of 240 m2 where micro-organisms can settle and perform their biological cleaning action. Thanks to its wide cavities (30 to 200 micron) glaX stone proves ideal to depurate a tank’s water eliminating ammonia, nitrites and nitrates. glaX stone’s depurative action is a complete one, including both the aerobic cycle (external part) and the anaerobic one (internal part).
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