“It starts with their behavior.”
Koi fish act differently when they are sick, much like people do. They’ll stay away from the group, often hanging out near the surface or on the pond bottom. They may even stop eating.
“The eating part definitely sounds like a person,” Ashley notes.
Your fish can also be sick if they:
- Keep their fins close to their body
- Gasp at the surface
- Have discoloration
- Look different
- Start rubbing against objects
“If they look different?” Depending on the disease koi fish can start looking different. They might have cloudy eyes, red streaks on their fins, white spots, cottony tufts, bloating, or ragged fins.
“None of those sound good. I don’t know if any of our fish have these symptoms. We’ll need to keep an eye on them, maybe put them in a basin and take a close look,” Tyler says.
He hands the phone to Ashley so she can see what the treatments for these koi fish diseases are.