Kusuri Hydrogen Peroxide 6% Solution is used for the re-oxygenation of pond water after a treatment of Kusuri Potassium Permanganate.Kusuri Hydrogen Peroxide 6% Solution can be used to increase the oxygen levels and remove the discolouration from pond water after a course of Kusuri Potassium Permanganate has oxidized from pink to brown.Kusuri Hydrogen Peroxide 6%Solution can also be very useful when applied to pond water prior to the removal of sludge and detritus. The hydrogen peroxide will neutralize hydrogen sulphide realised from the sludge and detritus being removed. Dosage 25ml per 220 gallons (1000 Litres) of pond water. Fill a clean watering can with pond water, then add correct dose of Kusuri Hydrogen Peroxide. Slowly apply to the pond over a 1 hour period, this will prevent shocking the pond with a highly concentrated dose. Do not use below 10°C (50°F).