Category Archives: Diseases

Quarantine Your Koi: Why and How

Anyone that has cared for or owned koi for any significant period of time has had to isolate their fish for one reason or another. Sometimes its necessary to remove your fish in order to clean their pond or perhaps … Continue reading






Posted in Diseases | Tagged diseased fish, hospital tank, koi, proper size, quarantine, transferring fish | Leave a comment

Koi Diseases and Their Treatments

    For a koi, life can be full of peril. The fish in an outdoor pond are subject to not only birds of prey and raccoon but to things you often can’t see that live in your water and … Continue reading






Posted in Diseases | Tagged anchor worm, bent koi, cotton wool, dropsy, epistylis, fungal infection, gill maggot, gyrodactylus, ich, koi diseases, lymphocytis, MedFinn, oodinium, saprolegnia, skinny disease, trichodina, ulcers | 236 Comments