Koi eye issues, newbie after some advice

[Sawrip]

Hello,

I am looking for some advice regarding a Koi in my parents pond which has had a lumpy growth covering it's eye for a number of years now. My worry is that the other eye appears to be cloudy and hence this could result in blindness.

Can somebody advice what they think I'm dealing with here, is it bacterial in the cloudy eye? The cauliflower growth on the other one has been there years and am a little unsure of what it actually is. Any advice would be most appreciated.

[nmtsaki]

Have you checked the water quality of the pond? Water quality issues can cause cloudy eyes in koi; also possible parasite issue. How often are water changes done? Buildup of nitrite and nitrate (last product of nitrogen cycle in pond, needs to be removed by water changes) definitely can cause issues with the eyes.

A blind koi can survive in the pond; sometimes the eyes can be removed, preferably by an aquatic vet.

Here is an old archived post that deals with cloudy eye issues:

https://www.koiphen.com/forums/showt...th-Cloudy-Eyes

Keep us posted; definitely test the pond water values and include them here; post the actual numbers, not just “all are good” - we need ammonia, nitrate, nitrate, and pH at the minimum. KH is also a parameter that should be measured, and I highly recommend it.

Nancy

[Sawrip]

Thanks for the reply Nancy, Wcs are done fortnightly at 15 percent. I will test the parameters and let you know shortly.

[kdh]

https://cafishvet.com/fish-health-di...h-cloudy-eyes/

[Sawrip]

So I've the tested the water:

Ammonia 0, Nitrite 0, Ph 7.4, No3 80, Dkh 6. My parents tap water runs at 20ppm No3.