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Symptoms Finder

You'll get a picture of the koi/goldfish, you click on the koi fish where it's sick, or choose from several other behavioral options that your koi may be exhibiting.

What KoiCrisis Is For?

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We offer FREE personal help with your sick fish and/or pond water quality problem. Fill out our easy “Help Form” by Aqua Meds

Feeding Koi

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Aqua Meds®

Have questions about care of sick fish and/or pond water quality problems and how to treat them? We have the answers.

Fish Medicines

Learn about fish medicines, what they do, and where to get them.


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.



Chloramine T Bacterial Gill Disease in Koi

What It Is: Chloramine T is a pale powder which is powerful against bacterial gill disease and parasitic infections. 

What It's Good At: Chloramine T kills bacteria which infect and kill your koi. Bacterial gill disease is eradicated.

BackGround: This chemical was initially tested at UC Davis in California and has found widespread popularity in the treatment of ornamental pond livestock. The chemical is safe when used correctly.

Pros: Effectively controls bacterial gill disease and several parasites including gill and body flukes. Safe when dosed correctly.

Cons: If used at too high a dose, Chloramine T can "burn" the fishes' skin. It can kill beneficial filter bacteria so users are expected to bypass treated-water flow around their filters.

Up Date: An excellent treatment for Koi Bacterial Disease is Ulcer Aid Rx