Using Virkon Aquatic & Euthanizing koi

Using Virkon Aquatic & Euthanizing koi.
The fin rot issue continues and i lose two more fish. One i have to euthanize unfortunately as the rot reached the flesh of the koi.
Also in this koi update video, i start using virkon aquatic tablets as a pond disinfectant to help battle any bacteria issues within the koi pond.
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