Szpond wrote:

I have a small comet that has been on the surface of the water for a few days
now. He cannot close his mouth. I looked at Koi Vet, but could not find
anything to tell me about this. I feel so bad for him. Anything I can do?
What is it caused by? Thanks so much, Cathy

I would look here and go to the main page to find similar symptoms. Is
he outside? I would follow the advice at the site and bring him inside,
if possible.

http://users.megapathdsl.net/~solo/p...m%20the%20pond