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Thread: Ratio of Black Bee vs CRS

  1. #1
    Kenshin
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    Default Ratio of Black Bee vs CRS

    For expert breeders of CRS/Black Bee shrimps:

    How many Black Bee shrimps should I put in an aquarium with the CRS to make sure I widen their gene pool?

    Ratio please

    I have seen all of the expert breeders here breeds a small amount of Black Bee shrimps together with the bunch of CRS.

    Would a 4:1 ratio work (4 CRS : 1 Black Bee shrimp)?

    Any advice would help. Thank you very much.

  2. #2
    BaLuKu
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    about 20pct of the pool will be nice

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    Senior Shrimper06's Avatar
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    So the ratio should be about 5:1, CRS to Black Bee.

    Thank you.

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    Moderator silane's Avatar
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    Quote Originally Posted by Kenshin View Post

    How many Black Bee shrimps should I put in an aquarium with the CRS to make sure I widen their gene pool?
    What do you mean by widen their genes pool? What do you want to achieve with black bee shrimps in the tank?

  5. #5
    Kenshin
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    The whole purpose of me asking this question is because I have heard reports that if just high grade CRS breed among themselves without any Black Bee shrimps, over several generations all of my CRS offspring will look like C grades again. I have heard that the Black Bee is supposed to help prevent that problem by spreading their dominant black gene to the CRS.

    Some Japanese breeders/dealers in Japan recently told me that.

    And that is why I am asking how many Black Bee shrimps should I put in with a population of CRS.

  6. #6
    Hinomaru lover Moses703's Avatar
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    Hi guys~

    I heard that the idea of mixing black bees to stablize

    the good grade of shrimps was

    just a rumor from black bee shrimps owners.

    If you are looking for the ratio that will stablize the population of

    Black bee and Red bee, it is 7:1.

    ( 7 red bees and 1 black bee )

    If the black bee doesn't have red bee gene at all.

  7. #7
    Moderator silane's Avatar
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    Quote Originally Posted by Kenshin View Post
    The whole purpose of me asking this question is because I have heard reports that if just high grade CRS breed among themselves without any Black Bee shrimps, over several generations all of my CRS offspring will look like C grades again. I have heard that the Black Bee is supposed to help prevent that problem by spreading their dominant black gene to the CRS.

    Some Japanese breeders/dealers in Japan recently told me that.

    And that is why I am asking how many Black Bee shrimps should I put in with a population of CRS.
    I see, I heard about such claims and was told by a Japanese when he has lot of diamond shrimps for sales. I did not hear him telling this theory after he cleared his diamond.

    Should a completely new line of diamond shrimp be used or any diamond shrimp from the same tank which has bred with the red (same genes pool) for generation can be used too? I alway want to know the answer to this question.

  8. #8
    Kenshin
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    Ok Silane,

    Since you are one of the most experienced expert breeders of CRS/Black Bee shrimps, how many Black Bee shrimps do you have in your population with the CRS? This can then give me a clue as well.

    Anyway, for everyone here, thank you for your advices.

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    Quote Originally Posted by Kenshin View Post
    The whole purpose of me asking this question is because I have heard reports that if just high grade CRS breed among themselves without any Black Bee shrimps, over several generations all of my CRS offspring will look like C grades again. I have heard that the Black Bee is supposed to help prevent that problem by spreading their dominant black gene to the CRS.

    Some Japanese breeders/dealers in Japan recently told me that.

    And that is why I am asking how many Black Bee shrimps should I put in with a population of CRS.
    That is why you should use selective breeding methods. So remove all lower grades from your population. You can use diamonds for inbreeding to achieve some wider genepools, but my theory is that it can also be done whithout

  10. #10
    Moderator silane's Avatar
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    Quote Originally Posted by Kenshin View Post
    Ok Silane,

    Since you are one of the most experienced expert breeders of CRS/Black Bee shrimps, how many Black Bee shrimps do you have in your population with the CRS? This can then give me a clue as well.

    Anyway, for everyone here, thank you for your advices.
    That's something I have yet to figure out. I used to put some, but the product of black and red was not as good (maybe compatibility) as red and red. I have discontinued to use black to widen genes pool and prevent them from fall back to lowest grade.

    I am contantly buying high grade CRS to cross with my current pool, so using black is not necessary.

    But I do have some good black arounds, I keep them in my tank regardless of ratio to enhance the white, noticed that I can get good white from Bbxb.

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