How To Predict If A Koi Will Develop A Shoulder Hump?

abc123userabc123

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I personally dislike koi fish that have a shoulder hump (behind its head). Therefore when picking out koi fish for my pond I must be able to choose the proper koi fish. Are there any ways of selecting juvenile fish and predicting whether or not they will have a shoulder hump? Are these humps already visible in Tosai fishes? Thanks!
 

scarface

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I thought the hump has to do with undernourishment more than anything. I read that somewhere when selecting Common Goldfish (Hibuna), but maybe it pertains to koi as well.
 
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abc123userabc123

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scarface said:
I thought the hump has to do with undernourishment more than anything. I read that somewhere when selecting Common Goldfish (Hibuna), but maybe it pertains to koi as well.
I have been receiving different answers, but I think it narrows down to metabolism, feeding amount and genetics. I wonder if koi fish have visible humps as early as juvenile stage?
 
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