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Koivet Had a Forum
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,

Quarantine - Comprehensive
I LOVE my Contico garbage can filter. 100+ gallons in a small footprint. Flooming pump and cover for at night, grate for daytime.

Quarantine - by Doc Johnson
Quarantine is the best method to reduce disease introductions. Let me outline a quarantine facility and protocol as if the fish we were discussing were quite valuable.
First, a large facility is required, 100-150 gallons is good.
It should have a fully cycled filter sponge or other type of effective nitrification system, fully operational.
A quarantine with bad water is infinitely worse than no quarantine at all.
Temperature should be 72 to 78 degrees in quarantine. People heat their fish to 86 degrees to kill Ich and it ends up accelerating bacterial overgrowth and decreasing oxygen capacity of the system.
pH should be supported with Buffitup neutral buffer dosed according to label instructions.

You should dose the quarantine with 0.3% salt (Noniodized salt at 3 teaspoons per gallon).
The quarantine should be completely covered or you can float some foam on the surface. Koi like to jump out, and that can be costly.
You should check Ammonia and pH in quarantine each day. Ammonia should be ZERO. pH will normally crash in quarantine unless buffered.
You could feed an antibiotic food during the stay in quarantine.
The facility can be safely treated with Dimilin while in quarantine, even with the salt, etc. This will stop the introduction of Lerneiid and Branchiurian parasites.
Once your new fish are in the quarantine, if it's possible, the first thing to be done is to find someone with a microscope to help you determine if there are parasites living on the surface of the fish. Even if you don't recognize what the "bugs"are, it helps to know from the outset that there is something eating at the fish. You can describe what you saw to someone like me, later. Notice things like: How fast the "bug" moved, how big it seemed to be, how it moved, whether it had a nucleus or two in it, what shape the nucleus was, and whether it was armed with hooks, flagella, or what. What is the general shape of the thing? All this helps.
Finally, the quarantine should be of a 14-21 day duration, so long as water quality can be supported with changes, etc. as needed.

- Note From Doc Johnson
"I will often quarantine fish which came in sick, for months and months. If the fish came in during the peak of the summer season and they hold up well and come from healthy stock, I will usually observe them in quarantine for a week and then move them into the collection." ~ Doc Johnson

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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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