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Forum contents and participants have "gotten with the times" and moved on to Twitter, Instagram, Facebook.

Aquameds is a mid size provider of fish medications to the koi and goldfish resources you often turn to. They support their retailers as well as the hobbyist. They have a consultation form of great utility. Retailers can also contact them through their site,

Hydrogen Peroxide After a potassium permanganate treatment
DOSE: One quart of HYDROGEN PEROXIDE 3% per five THOUSAND gallons of water.

Hydrogen Peroxide
Hydrogen Peroxide - by Doc Johnson
After a potassium permanganate treatment, you can turn the water back to crystal clear. Be careful though, treating with peroxide prevents the successful deployment of Potassium permanganate the following day!
Hydrogen Peroxide is applied the the complete CONCLUSION of a potassium permanganate treatment. The reason is: that you do not want interference with potency of potassium treatment on subsequent days, so, if possible; wait until you are finally DONE with potassium before treating... However, if the water is OPAQUE brown - and you cannot see the fish, you need to decolorize at once and sacrifice the next few days' treatments.
Regular hydrogen peroxide from the grocery store is used. DOSE: One quart of HYDROGEN PEROXIDE 3% per five THOUSAND gallons of water.
Just so you know, our initial dosing was done at a mammoth level: one CUP per one hundred gallons, and we used like six gallons in a five thousand gallon pond with safe results, BUT, and this is a big but; testing to determine the MINIMUM dose needed brought the effective successful dose down to the 1quart/5000G level.
Decolorization requires up to an hour depending upon how your pond circulates, how much KMnO4 is in there, and how much peroxide you used.. Remember that your potassium will fail the next day or two. If you attempt to overdose and "beat" the previous day's peroxide, you could kill your fish. So, don't decolorize with peroxide until you're REALLY done with the KMnO4 -

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Koi Beginner
Once you've leapfrogged through this tutorial you will have a solid, working concept of the Koi hobby and what it's all about. This is done just about exclusively with video and very little written material.
More than koi health, this site spans all things animal, by a real veterinarian who shoots you straight.

By Frank Prince-Iles. A UK authority who put this site together some time ago and which is still relied upon as a major source of good Koi and pond fish information

If you have a koi, pond or fish problem, this site takes you through twenty easy questions and at the end you know what you need to fix in your pond to create restored Koi health.
koi ponds

If you need pet information AND Koi pondfish and pond information you might like DrJohnson.com which has everything from pet info, to vet info, to koi and pond fish. It has it ALL! Pet Information.

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