Meco 50pcs 16mm Black Aquariums Ball Aquatic Creatures Bacteria Culture Ball For Fish Tank Filter

Specification Name: Bacteria Culture Ball Material: Plastic Color: Black Diameter: Approx. 16mm/0.62" Total Weight:100g Features a. High efficiency and high quality biochemical cotton filter element, more effective propagation of bacteria. b. Large surface area, you can break down the for poison, make up the space. c. High Xiaopei bacteria, make up the deficiency of the filtering space, increase the oxygen content in water. d. Suitable for the aquaculture in freshwater and seawater. Package Included: 50 x Bacteria Culture Balls