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How to model water flow when only a couple of sample points available?

Why do my koi 'flash' during the day?

  • I only seem to notice it during mid-day to evening, the hottest points of the day (May just be where the sun is at those times). In between 'twitches', they are fine, and either school around, chase each other, eat, or just relax. The flashing is more common in 2 of the 5. They only started doing this a couple days ago. Would it be because of a PH spike/crash during the hot hours of the day? There is plenty of plants and shade. I can't get down to the petstore for a few hours (was going to take them a water sample), just want to see if anyone else has had this experience.

  • Answer:

    It's the sun reflecting off there scales. All koi do it

bonafide... at Yahoo! Answers Visit the source

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I would have to agree and say that the koi's scales are reflecting the sunlight. Unless you are absolutely positive that that's not what is happening, then I would not worry about parasites and what-not (though I would suggest getting a pH kit :D ). You can test this theory by putting an umbrella, or something that would provide alot of shade, over your pond during mid-day to see if there is a flash without light. This would provide you with the answer, hopefully, to your question. :)

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