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13-05-2018, 11:21 AM #1
How to predict if a koi will grow a shoulder hump or not?
I personally dislike koi fish with shoulder humps, and I would want to be able to know whether or not a certain fish will grow a shoulder hump or not. In the future when I choose koi fish, then I would know. There certainly are ways to tell how they will look like when matured, and it has something to do with the shape of its head and gill plate?
Last edited by claytonyu; 15-05-2018 at 04:14 PM.
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13-05-2018, 09:59 PM #2
mystic meg ?!
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15-05-2018, 07:19 AM #3
Is it if they have a narrow head they are more likely to get the hump rather than those with big wide heads. Something to do with wife head allow for the fish to grow outwards as well as length whereas a narrow head means the shoulders are more restricted. I can’t quite remember where I hear this or if it’s true though. I may well have dreamt this up
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15-05-2018, 04:13 PM #4
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15-05-2018, 04:38 PM #5
The differences are very subtle in tosai but become more obvious as they get older.
I’m not a fan of the hump if I’m being honest but if I like the fish I may tolerate it.
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Ajm Thanked / Liked this Post
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15-05-2018, 07:10 PM #6
Interesting. I love a defined strong shoulder on a koi. Many of the very large Japanese koi have such humps. I think they look great.
Ian
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Ajm Thanked / Liked this Post
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15-05-2018, 07:19 PM #7
Its a combination if genetics, understanding the blood lines of the koi you’re growing, diet, temperature, pond size, current/flow
Fish in my pond have around a 30% chance of getting the hump, but that might say more about me than their parent stock LOL.2016 new 6000 gallon pond
https://www.koiforum.uk/pond-construc...ghlight=feline
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Ajm Thanked / Liked this Post
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17-05-2018, 07:40 AM #8
usually if its female, it will get the hump on at some point
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17-05-2018, 05:25 PM #9Freddyboy the legend
"we are water keepers first"
Johnathan
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anne Thanked / Liked this Post
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17-05-2018, 05:39 PM #10
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alannette Thanked / Liked this Post
Running heater at low temp?
Covering the pond with polycarb should be enough to stop water temps dipping below 6C for the most...