DescriptionThe Bio Balls can filter impurities to reduce algae growth, keep your fish tank clear and clean. The internal biochemical cotton improves the filtration effect, stabilizes the water quality and accelerates the maturation of nitrifying bacteria. Besides, they can be used in various filters, like upper filter, filter bucket, fish tank bottom filter, hanging wall filter, etc.Features-Color:Black -Material:PVC -Size:2.60X2.60X2.60cm/1.02X1.02X1.02in -They are used to clean swimming pools and filter impurities, which can save you time. -In the filtration process, the efficiency is high, the filtration is fast, and the sewage interception capacity is large. -These Bio Balls are reliable, and they are suitable for filtration of various water qualities. -They have the advantages of being lightweight, having high strength, and having good elastic effects. -High density, sturdy or non-deformed after soaking. Effectively filter the fine substances in the water.
