King koi fry (hopefully) - Betta Fish and Betta Fish Care
 
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post #1 of 9 (permalink) Old 01-15-2019, 12:28 PM Thread Starter
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King koi fry (hopefully)

I bred my male king betta with my female koi. The babys are 9 weeks old and not very big. Are they an appropriate size or should they be more grown more by now? This is my first attempt at breeding and did exensive research before attempting anything. I just want to make sure im on the right track and fix anything I'm doing wrong.
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post #2 of 9 (permalink) Old 01-15-2019, 01:11 PM
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Feed them more. Constant full bellies + space = fast growth.

Sorry to disappoint you, but king/giant x regular = majority (if not all) regular. Some might be bigger or at least grow much faster. But usually they stop growing after a certain size.

Take fast growing biggest female offspring and breed to daddy. You might get a few bigger offspring.
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post #3 of 9 (permalink) Old 01-15-2019, 05:43 PM Thread Starter
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Ok thanks! How can i tell male/female with young bettas?
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post #4 of 9 (permalink) Old 01-15-2019, 05:46 PM Thread Starter
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Quote:
Originally Posted by indjo View Post
Feed them more. Constant full bellies + space = fast growth.

Take fast growing biggest female offspring and breed to daddy. You might get a few bigger offspring.
Do you mean to breed the baby with its dad (the king)? This is my first time breeding so I don't know if inbreeding is ok or not. Also, what should I feed them? I have a microworm culture but they haven't seemed to interested in them or the "first bites" fish fry food.
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post #5 of 9 (permalink) Old 01-15-2019, 09:19 PM
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Yes, breed daughter to father. Some say inbreeding is safe up to 8 generations (direct siblings). I only do up to 4 . . . Not direct siblings. I breed the same pair twice then cross the offspring. Or offspring to parents (usually to daddy can only be done 2-3 generations because the male will be too old).

Feed anything live. They react better towards moving food types. Many will not touch man made foods until a later age. Newly hatched fry will not swim around for food. You need to drop food near fry. Feed 2-3 times daily. If you want to grow giants, feed 4-6 times daily.. . . . But fry need to carry giant genes to actually grow.

I answered sexing in your other thread
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post #6 of 9 (permalink) Old 01-15-2019, 09:45 PM
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From everything I have read, Koi x non-Koi a majority will be non-koi. Koi x marble = 100% marbles. Only koi x koi has a chance of a majority koi offspring.

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post #7 of 9 (permalink) Old 01-15-2019, 10:34 PM
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Quote:
Originally Posted by RussellTheShihTzu View Post
From everything I have read, Koi x non-Koi a majority will be non-koi. Koi x marble = 100% marbles. Only koi x koi has a chance of a majority koi offspring.
IMO the problem is that people sell marbles as koi (I would not name a changing color/pattern). Marbling koi x non koi will only produce multi colored marbles or what people call "fancy" (though not all deserve that label). A friend says you have a better chance of producing marbled koi in F2,
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post #8 of 9 (permalink) Old 01-16-2019, 05:28 PM
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This article I was reading essentially agrees with indjo.

It points out that you really cannot determine if a Koi is a Koi or a marble until it is at least eight months old; even better to wait a year to insure the pattern is stable. But most do not wait that long to sell or breed. They think they selling a Koi when they are really selling a marble. Or they think they are breeding Koi x Koi but what they could well be breeding is marble x marble or Koi x marble. Guess they do not wait to see if the trait is stable. Or do not research.

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post #9 of 9 (permalink) Old 01-16-2019, 10:48 PM Thread Starter
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Ok, thank you guys do much for all that information! I love learning more about fish and appreciate your patience with me not knowing everything yet. Also, what does F2 mean? Thats the second generation of breeding right? So like the babys of a fish bred to their parent?
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