Aquatic Experts 1.5 Large Bio Balls for PondsBiological Filt

Large 1.5 Bio Balls for Ponds Waterfalls Oversized 1.5 balls designed for pond filters, waterfalls, and high flow outdoor systems. Each ball provides nearly 2 sq. ft. of surface area for beneficial bacteria to break down waste.Treats Up to 1,000 Gallons A 300 count pack treats up to 1,000 gallons of pond water. Use 30 bio balls per 100 gallons or 300 per 1,000 gallons so you can buy the correct amount for your pond size.High Flow, Low Maintenance Design Open spine structure lets debris pass through instead of clogging. Unlike lava rock, these bio balls maintain performance and rarely need cleaning.Durable, Long Lasting, and Safe Made from 100 polypropylene that wont degrade. Ideal for koi ponds, freshwater ponds, aquaponics, and large aquarium sumps. Use loose or in the included 14 x 20 mesh bag.Sponge Free Core for Cleaner Water No sponge center to trap gunk. Solid core design keeps water flowing freely for cleaner, healthier ponds. Proudly Made in the USA. MORE DETAILS asin B07613BQ2N bestsellersrank 15 in Pond Filtration Equipment datefirstavailable September 28, 2017 itemmodelnumber PD4560 manufacturer Aquatic Experts productdimensions 17 x 5 x 11 inches 3.55 pounds