What will kill red fungus in swimming pool?

* Chlorine: Chlorine is one of the most effective ways to kill red fungus in swimming pools. The recommended chlorine level for pools is between 1 and 3 parts per million (ppm).

* Bromine: Bromine is another effective disinfectant that can be used to kill red fungus in swimming pools. The recommended bromine level for pools is between 2 and 4 ppm.

* Biguanide: Biguanide is a newer type of disinfectant that is effective against red fungus. The recommended biguanide level for pools is between 20 and 50 ppm.

* Hydrogen peroxide: Hydrogen peroxide is a powerful oxidizing agent that can be used to kill red fungus. The recommended hydrogen peroxide level for pools is between 50 and 100 ppm.

* Ozone: Ozone is a gas that is effective against red fungus. Ozone is generated by passing electrical current through water.