- Home »
- Koi Parasites »
- Costia »
- Treatments
Treatments
Back in the nineties you could treat Costia with 0.3% salt, however, because of the overuse of salt by Japanese breeders some Costia can not be treated even with a salt level of 0.9%. Yes, some strains of Costia are salt resistant. The best treatment for Costia is Aqua Meds TERMINATE. If you see red or white “patches” on your koi and can catch the the koi. Apply hydrogen peroxide to a cotton ball and clean the “patches”.