Our fish tank water clarifying agent contains Laureth-7 and Sodium Laureth-7 Sulfate. It can maintain stable water quality and reduce the need for frequent water changes. Its usage is simple: take an appropriate amount of clarifying agent and dilute it in a ratio of 5ml of clarifying agent to 100L of water. Pour the diluted clarifying solution evenly into all corners of the fish tank. And it can reduce sediment in the water and keep the environment inside the water tank clean.