Filter media balls for aquarium and pond, 100pcs fish tank filtration This Fish Tank Filter Ball is a simple and practical fish<br> tank filter tool, which is fish tank or aquarium use,<br> and the quality in the fish tank.<br> Therefore, an present choice for your friends who want to farm some pet<br> . The flow of droplets through the biosphere is greatly lengthened, increasing the action time of nitrifying and cleaner quality.<br> Features<br> -Color:Black<br> -Material:PVC, Cotton<br> - Size: 2.60X2.60X2.60cm/1.02X1.02X1.02in<br> -Aquarium Filter Ball is made of excellent materials, and the craftsmanship a good cleaning effect.<br> -It is characterized by its simple structure and convenient use, which your time and energy.<br> -It can quickly remove harmful substances, peculiar smells, purify and soften and pigments.<br> -Good material and , you can . The unique design and craftsmanship<br> popularity and practicality.<br> -The internal biochemical cotton further improves the filtration effect and stabilizes the quality, accelerating the maturation of nitrifying .<br> Package list: Aquarium Filter Balls