Cardinal Tetra is one of my favorite fish for planted aquarium. I have got thousand of cardinal tetras. They all look the same with brilliant bright color. And this is the only one I notice it's different.
Like other cardinal tetra, it has brigh blue color and red belly. But on it's back, it's bright golden color, and the head's silver color. Could this be a mutation or a new species???
Like other cardinal tetra, it has brigh blue color and red belly. But on it's back, it's bright golden color, and the head's silver color. Could this be a mutation or a new species???
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