A specially selected blend of zeolites is particularly recommended in tanks with plentiful livestock and or ULNS tanks. Due to its carefully designed composition, Zeo Mix is a comprehensive, multifunctional filtration media. Zeo Mix perfectly absorbs ammonia and ammonium ions in the initial phase thus inhibiting the increase of nitrate concentrations. In addition, it bonds phenols and heavy metals. Zeo Mix is especially recommended for demanding marine tanks.