Aquaforest's Zeo Mix is a specialized filtration media designed for marine aquariums with substantial livestock or those utilizing Ultra Low Nutrient Systems (ULNS). This blend of zeolites offers multifunctional filtration benefits, including the absorption of ammonia and ammonium ions, inhibition of nitrate accumulation, and the binding of phenols and heavy metals. Notably, Zeo Mix does not lower potassium levels in the water.