Precautions:
• The presence of large amounts of organic debris, uneaten food, dead fish, leaves, dead plants will cause the potassium to spend it's energy on oxidizing the organics, not on the parasites or ulcers.
• The presence of dechlorinator in the water will inactivate the treatment. (Latency 2 days)
• The presence of Hydrogen peroxide will inactivate treatment. (Latency 3 days)
• Potassium can kill a lot of algae, increasing oxygen demand, especially in warm water over eighty degrees.

How to do this:

Day One
1. Bypass filter but increase circulation and aeration
2. Apply one level teaspoon of granular potassium permanganate per six hundred gallons of water. Do not stand down wind as the powder is added. Do not get in eyes. Do not get on skin. Do not breathe powder.
3. Wait until water changes from purple/pink into a brown or amber color.
4. Resume filtration and keep up all circulation.
5. Apply standard OTC Hydrogen Peroxide 3% USP at a rate of one quart per five thousand gallons of pond water. In one hour you'll have clear water with no residual evidence of Potassium staining.

Day Four
1. Bypass filter but increase circulation and aeration.
2. Apply one level teaspoon of granular potassium permanganate per six hundred gallons of water.
3. Wait until water changes from purple/pink into a brown or amber color.
4. Resume filtration and keep up all circulation.
5. Apply standard OTC Hydrogen Peroxide 3% USP at a rate of one quart per five thousand gallons of pond water. In one hour you'll have clear water with no residual evidence of Potassium staining.

Day Eight & Twelve
1. Exact repeat of Days One and Four