Seachem safe is the complete and concentrated conditioner for both fresh and salt waterr safe removes chlorine chloramine and ammoniar safe converts ammonia into a safe non toxic form that is readily removed by the tanks bio filterr safe may be used during tank cycling to alleviate ammonianitrite toxicityr seachem safe detoxifies nitrite and nitrate allowing the bio filter to more efficiently remove themr safe is non acidic and will not impact phr safe will not over activate skimmers