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Koi lying at the bottom of the tank? Or is it a skin and scale disease like red-skin disease?
Red-skin disease is also called hemorrhagic putrefaction disease, red-skin plague, scale-erosion plague, or fin-rot disease. Symptoms: the diseased fish's scales fall off (which distinguishes it from skin inflammation and congestion disease), especially obvious on both sides and the belly. The diseased fish's skin is locally or largely inflamed and congested, and the bases of the fin rays of the dorsal fin, caudal fin, and other fins...
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What Are Five-Colored Koi Like? An Analysis of the Color Characteristics of Yellow Bekko Koi
Introduction to Five-Colored Koi. Five-colored koi are produced by crossing light yellow koi with three-colored koi, and are named five-colored because they carry white, red, black, blue and indigo on their bodies. In the white five-colored type, those with a beautiful red pattern are especially prized. Five-colored koi change greatly before the age of 2, so at 1 year old they must be observed in detail for skin...
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