Absorb toxin in the fish tank onto the clay particles which helps improve water quality and clarity, Montmorillonite has powerful adsorption and absorption powers. Naturally, White Mineral Stone has a negative charge inside the layers of the stone, while toxins have positive ions. The negative-ion White Mineral Stone will attract positive ions of toxins and bind them. Toxins commonly found in the aquarium include Ammonia, Hydrogen Sulfide, Nitrite, Methane and other wastes, White Minerals Stone consists of minerals require for shrimps includes Si (Silicon) is main nutrient in building shrimp’s exoskeleton. Shrimp’s shell will be hardened after molting period. Mg (Magnesium) is activator of several enzyme systems and digestion for shrimp. Normalize shrimp’s metabolism. CA (Calcium) is vital in shell building process and helps regulate pH balance. Na (Sodium) is essential nutrient in improving shrimps osmoregution.