The Trusoft-P is the bestwater softener for the aquariums. It has a ready-to-use container bag which contains resins for removing magnesium and calcium. The softeners often alter the chemistry of the water by replacing the calcium with sodium. In some cases, this is going to be bad for the fish. It removes hardness-causing calcium and magnesium minerals from the water through a process called ion exchange. The ion exchange process in your water softener reduces hardness while also recharging the system through another ion exchange in the brine solution. The Trusoft-P is made for use in the various industries.