It is a macro-porous alkaline synthetic polymer that can adsorb larger-sized soluble and insoluble impurities. It has a high capacity for organic filtration and acts as an antioxidant. Additionally, it can effectively clarify water by reducing discoloration. This polymer is capable of removing both soluble and insoluble impurities from water. The Organic Remover also helps regulate ammonia and nitrite levels while reducing nitrates by eliminating nitrogenous organic waste, which would otherwise release harmful compounds. Furthermore, it can be regenerated. As it adsorbs waste products, it undergoes a color change from a pale blonde to a dark brown, almost black. Once it becomes exhausted, it can be regenerated using a solution of bleach and water. Remember to rinse it thoroughly before reuse and place it in a mesh bag for optimal performance. Directions: As it absorbs waste products, it undergoes a color change from pale blonde to dark brown or even black. Once it becomes exhausted, it can be regenerated using a solution of bleach and water. To regenerate the product, follow these steps: Soak the exhausted Phosphate Remover in a non-metallic container filled with a 1:1 bleach to water solution for 24 hours. Ensure that you perform this process in a well-ventilated area and keep it away from children. Use regular 8.25% hypochlorite household bleach without any added scents or dyes. Avoid using splash-less bleach. After the 24-hour soaking period, rinse the Phosphate Remover thoroughly. 500ml treats 2000L of aquarium water