Water Gardening: Sick koi - help!?, 1 by Birdlady_Susie

Birdlady_Susie wrote:
Hi! I usually hang out in the SW Gardening forum, but have a couple koi ponds and for the first time ever- sick koi!

We have lost 2 koi in the past week and this weekend I notice that 3 others have the same 'stuff' on them. These all came from the same place, we have had them for about 2 months. All the other koi (fingers crossed) do not show any signs of this problem. I am attaching a photo of the problem.

I am on my way to the store for a water test kit, I know I should have one, but we have never had any issues in the past 10 years, so I don't have one and know nothing about what can go wrong with fish, beside ich of course!

Any advice would be greatly appreciated.

Susie