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News A new tetra with color-coded sexing

Discussion in 'News, Events & Fests' started by Greater Iowa Reef Society, Sep 20, 2017.

  1. Sep 20, 2017 #1
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    Note: this is an automatic feed from the Advanced Aquarist blog at Advanced Aquarist. Content does not necessarily reflect the views of the Greater Iowa Reef Society and/or any of its Members.

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    As you can see in the photo above, the new tetra "exhibits a conspicuous sexual dichromatism, with adult males red to orange and females and immatures pale yellow."

    Hyphessobrycon myrmex is a very tiny tetra that measures only about 2cm (0.75 inches) in length. It's latin name, myrmex, is Greek for "ant." The new species is found in Mato Grosso, Brazil and described in the Journal of Fish Biology.

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    Last edited by a moderator: Sep 21, 2017

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