Things You'll Need
- Potassium permanganate
- Measuring cup
- Measuring teaspoon
- Mixing bucket
- Hydrogen peroxide, 3% solution
Instructions
Treating Your Koi
Disconnect or bypass any biological filtration connected to your pond or fish tank. Potassium permanganate will kill almost all bacteria (99.9%) that it comes into contact with and will ruin the beneficial bacteria colony in your filter.
Aerate your pond or tank with a bubbler or non-biological filter. Good aeration is necessary because potassium permanganate lowers oxygen levels.
Measure out the dosage of potassium permanganate based on label directions according to your pond or tank's water content. You'll need about one teaspoon per 1,000 gallons. Make sure the teaspoon is level and do not overdose.
Fill a bucket with the pond or tank water and mix in your pre-measured dose of potassium permanganate. Be sure to mix thoroughly.
Slowly add the water containing the potassium permanganate back to the pond or tank. Do not pour the water directly onto any of your fish. Treat for approximately five hours.
Check the water's color. If it is still pink, pour two cups per 1,000 gallons of 3% hydrogen peroxide into your pond or tank to neutralize and deactivate the potassium permanganate. Do not pour directly on your fish.
Restart your biological filtration system after three hours.