【Wide Application】 - Our biochemical beads can be used not only in seawater biochemical filtration systems, but also in co.ukeshwater biochemical filtration systems, perfect for use in aquarium, pond and aquarium. 【Function】 - A great help to restore the natural quality of the water and provide the most suitable living environment for your fish. 【How to work】 - When the water circulates in the internal space, the time is extended, using the nitrifying bacteria to achieve the effect of biochemical filtration 【Large volume】 - Strengthens the bacteria filtering effect, lightweight and easy to carry. Description: The biochemical ball is light and easy to carry. It can be used not only in seawater biochemical filtration systems, but also in co.ukeshwater biochemical filtration systems. Perfect for use in aquariums, ponds and aquariums. Specification: Item type: Aquarium filter material Material: PVC + sponge The black color Optional type: 16mm, 26mm, 36mm, 46mm, 56mm, 76mm Quantity: 50Pcs
