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Thread: CRS losing white?

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    Default CRS losing white?

    Hi, I need some advice regarding my CRS. I have between S and S+ grades, all are at least 4 months old now. I've noticed that some of my CRS are losing the white portions towards the middle part of their bodies; some are even getting a little red where it's supposed to be white. They also haven't molted very much and although I've had berried CRS carry eggs for a long time, I've only noticed a couple of shrimplets and they don't stay around very long.

    Can this be because I starting using RO water? I started doing that about 2 months ago in order to lower the TDS and pH of my hard, alkaline water. Right now the pH is around 6.8, nitrate 5, ammonia 0, TDS around 170, it's a planted tank with Aquasoil. I feed mainly Mosura food with occasional spirulina flakes. Can this be Ca deficiency or mineral deficiency from using RO water? Any other suggestions? Thanks!

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    Invert Obsessed southerndesert's Avatar
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    I use RO for the same purpose in 4 tanks and so far have had no problems with my shrimp. My water in Arizona, USA is very hard with a PH of well over 8 out of the tap.

    Being pretty new at shrimp I can't offer much more on what would be causing your color change and loss of young. I will be interested to see what others say.....

    Bill

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    Hinomaru lover Moses703's Avatar
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    Hi,

    over 90% of color fading results from

    gene if water condition is good.

    RO water supposed to be fine for crs, so

    I am sure this is problem with the gene.

    CRS breeders usually brings new blood shrimps that

    have brighter solid color to their current crs.

    This is very good way to better their gene

    over generations.

    When CRS are young mostly they all look good and

    solid color, but as they grow their true color shows up.

    That is the reason why many CRS breeders are concerned

    about linage.



  4. #4
    jojoecute
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    Hi Bill,

    Try getting a bottle of Prime Seachem http://www.aquatics-online.co.uk/catalogue/seachem.asp

    Please read carefully before dossing.... You will find improvement on your Crs color....

    Quote Originally Posted by southerndesert View Post
    I use RO for the same purpose in 4 tanks and so far have had no problems with my shrimp. My water in Arizona, USA is very hard with a PH of well over 8 out of the tap.

    Being pretty new at shrimp I can't offer much more on what would be causing your color change and loss of young. I will be interested to see what others say.....

    Bill

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