Koi, Goldfish & Pond Health In Twenty Steps
Koi, Goldfish & Pond Health In 20 Steps
Ulcer Treatments
Parasite Treatments & Cures
Koi Water Quality
Koi Quarantine & Health
Medications

Step Sixteen

Attack Parasitic Pathogens
Keywords:Koi, Goldfish & Pond Health Diagnosing Parasites Parastic Diseases Costia Chilodonella Ich Flukes Trichodina Ciliate Protozoan Pathogens Shotgun Treatments Remedies Strategies How To

Whole books could (and have been) be written on parasites in Koi but for simplicity we could suggest some shotgun remedies that we have found to be effective. I will reference various medications in this and future sections, to give you direction. It is your responsibility to learn how to use these medicines SPECIFICALLY and I recommend that you read all you can by qualified, experienced people. I wrote a whole book on this stuff, called “Koi Health & Disease” by Dr. Erik Johnson. (That’s me) In most ponds, a person could clear most significant parasitism with a combination chosen from below:

SCENARIO A: Planted pond, Aquascape Filtration, Water under 80o DF: Use Formalin / Malachite Green solution according to label instructions. With Aquascape filtration, you don't have to do water changes if the pond is under 80o DF. These ponds have high aeration and an organic load that handily breaks down Formalin before it hurts the fish. Watch for signs of low oxygen if water is warm. Do not use in winter water below 45o F. Safe for plants, Goldfish and Koi. Verify parasite clearance with microscopy.

SCENARIO B: Planted pond, no gravel or significant organic debris in substrate, water under 80 DF: Shotgun treatment with Praziquantel and Potassium permanganate. Dose daily with one level teaspoon of Potassium permanganate per six hundred US gallons for five days. After the fifth treatment, do a forty percent water change, decolorize the rest of the PP with 3% hydrogen peroxide and then deploy Praziquantel. Safe for plants, Koi & Goldfish. Verify parasite clearance with microscopy.


SCENARIO C: Planted pond, no gravel or significant organic debris in substrate, water under 80 DF: Shotgun treatment with Praziquantel and Potassium permanganate. Dose daily with one level teaspoon of Potassium permanganate per six hundred US gallons for five days. After the fifth treatment, do a forty percent water change, decolorize the rest of the PP with 3% hydrogen peroxide and then deploy Praziquantel according to instructions. Safe for Koi but will kill all Goldfish, Orfe, Rudd, Tench, etc. Verify parasite clearance with microscopy.

SCENARIO D: UN-planted pond, Aquascape Filtration, water under 80 DF: Deploy salt at 0.6% and Praziquantel full dose. Verify parasite clearance with microscopy.

SCENARIO E: UN-planted pond, no gravel or significant organic debris in substrate, water under 80 DF: Deploy salt to 0.6% and deploy Praziquantel on day one and again on day four. Safe for Goldfish and Koi. Verify parasite clearance with microscopy.

SCENARIO F: UN-planted or planted ponds in very COLD weather: Dose daily with one level teaspoon of Potassium permanganate per six hundred US gallons for five days. After the fifth treatment, do a forty percent water change, decolorize the rest of the PP with 3% hydrogen peroxide and then deploy Praziquantel. Safe for cold water, plants, Koi and Goldfish. Verify parasite clearance with microscopy.

SCENARIO G: Planted ponds in very HOT weather: You need to cool the pond down with daily water changes. These water changes are required when using TERMINATE in warm water anyway. So do a fairly major water change to begin with in order to cool the pond, and provide what shade you can to the pond. Use TERMINATE according to label instructions. Verify parasite clearance with microscopy.

Go To Step Seventeen

Supplemental Reading

Prazi - Praziquantel - Fluke treatment and control for Koi ponds and water gardens, without plant or filter effects. Article by Dr Johnson

Potassium Permanganate - KMnO4 - PP Treatment of bacterial ulcers, flukes, parasites, and fungus including saprolegnia in Koi and Goldfish ponds and water gardens reverse with peroxide or dechlorinator - Article by Dr Johnson

Hydrogen Peroxide - Use of hydrogen peroxide for oxygenation or reversal of potassium permanganate in koi and goldfish ponds and water gardens. Article by Dr Erik Johnson.

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