Koi, Goldfish & Pond Health In Twenty StepsDr Erik Johnson on Youtube with Koi Pond Fish Health Now on Amazon.com for Overnight Delivery

Step Eighteen

Assess Broad Spectrum or Shotgun Concepts and Remedies

To fight parasites and bacterial infections simultaneously:


Shotgun Therapy Number One (Koi Only)

1. Water testing

2. Mardel Clout

3. Praziquantel

4. Diflubenzuron (Anchors Away or similar)

5. Medicated food

Concepts behind this method:

· Mardel Clout controls the majority of ciliated protozoan parasites.

· Medicated food, in lieu of injections, controls the development of bacterial infections which might be brought on by transportation stress.

· Praziquantel for Flukes - Trematodesl is completely safe to use with salt and control Flukes, which are extremely common, very completely. - SUPAVERM kills goldfish!

· Diflubenzuron eliminates all crustacean parasites including Argulus and Lernea.

· Water testing is important because in quarantine, water quality sometimes sags. This compounds the fishes' stress and is worse than no quarantine at all! Also, fish will NOT get over their various ailments in poor water quality!

Problems with this Shotgun regimen

· Ich can survive this regimen unless you are careful to repeat the Clout three times every other day.

· If fish won't eat, then the medicated food will not achieve its objective.


Shotgun Regimen Number TWO for large facilities

1. Water Testing

2. Salting to 0.6%

3. Drop Salt to below 0.3% before Formalin

4. Formalin, using the 120 minute method

5. Achieve: 25 ppm Formalin for goldfish

6. Achieve: 50 ppm Formalin for Koi

7. Medicated food

Concepts behind this method:

· "The Costia workaround", because Formalin spares no parasites.

  • Salt knocks down Ich because it remains resident while Ich attempts it's life cycle.
  • Unfriendly to plants. If plants are an issue consider no salt. Rely on the Formalin entirely.

· 50 ppm is obtained by applying 2 cc of Formalin 37% per ten gallons of water.

· This regimen is perfectly okay for Goldfish if you go light (25ppm) on the Formalin.

· 25 ppm is obtained by applying one cc of Formalin 37% per ten gallons of water.

· Increase aeration for this regimen while Formalin is being deployed.

· After 120 minutes, the Formalin is to be mostly removed by a 50-70% water change.

Go To Step Nineteen

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

SupaVerm - SuperVerm - Closantel & Mebendazole mixture sheep dewormer from Europe used for flukes in koi and goldfish ponds and water gardens. Article by Dr. Johnson

Proper use of Formalin 37% (+/- Malachite Green) - Treating Koi & Goldfish parasites like Ich, Chilodonella and Trichodina, Costia (aka Ichthyobodo) and flukes with formaldehyde at 25ppm and 50ppm - Article by Dr. Erik Johnson

Dimilin, diflubenzuron, lufenuron, chitin synthesis inhibitors for control of Anchor Worm (lernea) and Fish Lice (argulus) - Article by Dr Erik 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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