It’s not hard to address your hard water problems in your freshwater tank with Cobalt Aquatics Total Softener Hardness Removing Resin. This highly durable resin lowers hardness in tropical fish and ornamental shrimp tanks to support a healthy environment. It even removes ammonium in acidic water to help reduce nitrite and nitrate production! You can use it in canisters， tank filters， dedicated media reactors and to clean water in large-volume storage containers. When exhausted， it will not release the collected pollutants back into the water. Plus， thanks to its ability to regenerate， you can use Cobalt Aquatics Total Softener Hardness Removing Resin time and time again.