The product consists of 50 simple and practical bio filter balls, which have a plastic construction with a high performance cotton filling, ideal for oxygenating your water change gas. Equipped with a mesh bag to store these bio balls. Easy to rinse and use, porous design, enhanced bacteria filtering effect, lightweight and easy to carry. The filter balls offer the bacteria a large surface area and thus achieve a very high level of efficiency for natural biological filtration. Sufficient amount can meet your different needs. Aquarium Filter Bio Balls, which are great for oxygenating your water and helping the gas exchange process. A valuable tool for restoring the natural quality of water and providing fish with an optimal living environment. Ideal for any freshwater or marine aquarium or mini reef aquarium. As the water flows inside, the time is extended using the nitrifying bacteria to achieve the filtering action biochemical. Pond filter beads should not be replaced if damaged or
