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Thread: OEBT turn brown?

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    Default OEBT turn brown?

    Hi all,

    My OEBTs turn more and more Brown after a period of time. is it due to bad water condition, water hardness or aging? they are only 6 months old. cant figure out why.
    does anyone encounter this? any ways to improve their coloration?

    I got my first shrimp 4 weeks ago. today I received a second batch and I can see a huge colour difference between the 2 batches. the new arrived ones are much more blue than the ones I have kept for 4 weeks.

    my setup:

    ACADEMA, under gravel filter, Eheim 2211 + substratPro

    Ph 6
    Gh 7-14
    Kh 0-1
    temp 22

    no3 and no3 seem 0, as I use test strip, which is not so accurate.

    Any ideas much appreciated.

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    its very normal for oebt's to get that rusty brown color when they get older.
    how big were the shrimp when you got them.

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    Genetically some OEBT are more brownie/reddish that others, and usually increase when they are older, especially females and berried females.

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    OEBT tends to be bluish when you initially got them due to stress. Once they are stable, they will show their true form. Furthermore, they don't really breed true as compared to Royal Blue. However, good OEBT can be selectively bred which will give you deep blue.

    Unless those OEBT that you have purchased from breeder which were already in a stable tank. In that case, it could be due to your water parameters or the way you kept them.

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    Thank you all for your replies.
    One of my mature female turned totally brownish now, after bearing eggs... The younger ones are still blue, especially the young male ones. It's probably ture that they turn brownish when aging.

    Anyone here has experience with enhancing their blue colour by adjusting the water parameters, fx. Ph, gh, kh and so on?

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