5 Lb 100% Pure Granular Bentonite Clay for Koi Goldfish Ponds water Plants 100% Pure BENTONITE CLAY "Koi Clay" 5 LB UNIFORM GRANULES Plugs holes in Ponds Expands over 30 times its original size and weight Attracts and Removes toxins such as pesticides, free radicals and heavy metals from pond Brightens Koi and Goldfish Colors Natural Algae Reducer Improves water quality and clarity for your fish Aids in Scale Development Improves Skin Quality, Brighter Whites, Deeper Reds Easily Dissolves in Water and absorbs into fish through gills body and digestion Enhances production of enzymes in all living organisms Improves Skin Quality, Brighter Whites, Deeper Reds Adds Trace minerals to plants and fish Benificial to Plants, Fish and Filters Fish live healthier and longer lives Dosage, 1 level tablespoon per week per 500 gallons, approximately 40 doses per lb. Can use up to 25x dosage but may slow down mechanical filtration flowrates. Use Freely in Potting Plants and Plugging leaks in Ponds