I have a grass carp (about 20 inches long) in an outside pond. Every summer he/she likes to bask in the sun with the top of his head out of the water. This area of his skin, which is normally black, quickly goes white and pink and looks very unhealthy. I fear he will get skin cancer as each year it is worse, and this year it has started early. So far, it all heals up over winter.
Every time he is disturbed he gets back in the sun after a few seconds. He shares the pond with numerous gold fish and they don't have the same problem.
I don't think sun cream or wearing a hat are viable options, and I don't want to shade the whole pond.
Location SW England about 50 degrees North.
Answers:
That's a tough question! I've got one large imported Koi that spends a good deal of time out of the water, but I know there is no way that I could ever stop her.
Have you tried asking this question at www.koivet.com? Just go to the community forum link at the top of the page. There are some true Koi and Carp experts over there and I bet one of them has run across this problem before. There are several good articles on that site about Koi skin cancer, too. Good luck.
Not realy a problem you can solve it likes the sun and unless you cover all of the pond it will keep sunning it self .
maybe he likes to be crispy
There is a simple solution to this. Since this is a pond, you should have some pond plants in the water anyways, plants like lilly pads will do wonderfully, and when they bloom, it looks magnificant. Not only do the lilly pads provide protection from the sun, and predators over-head, it also provides a landing spot for some insects, a perfect opportunity for your fish to get some extra food.
Put up some kind of shade cloth above them or one of those bamboo fence panels. Make sure the sun is shaded from the pond. I would put shade cloth over mine and take it off after the sun quit shinning on it directly.
Hope this helps
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