| Marco: I'd recommend that you go to koivet.com and search the threads for suggestions. (Click on "community" at the top of the screen and follow along the steps to the health forum.) After you have reviewed, you may have a specific question.
In the meantime, your proposed treatment may rid your koi of parasites which caused the ulcers, but the parasites are likely still in your pond. And, depending on the parasite, your treatment might not be the right one. Without a microscope, nobody will know for sure. However, more often than not, flukes are involved. Malachite green & formalin will treat those, but salt likely will do you no good. Personally, if parasites are implicated, I think it best to treat the whole pond.
The ulcers are symptoms of a bacterial infection, likely resulting from bacteria invading the punctures made by parasites. Your proposed treatment will not address the bacteria. Antibiotics are needed. Depending on the nature and seriousness of the infection, it might be possible to treat with antibiotic/sulfa drugs added to a hospital tank, or you might obtain benefit from medicated foods, but those who really know about ulcer infections will tell you that injection of antibiotics is the way to go. If at all possible, warm the water. Never under estimate the power of a koi's natural defenses. To get it's microbe defenses into high gear requires warm water.
And, as suggested above, focus on your water quality as well.
Good luck! Let us know how well/poorly it goes. |