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colombian tetra

  1. Very quick color change ?!?

    Beginner Freshwater Aquarium
    Hi everyone ! Just bought 12 colombian tetras to add some company to my 9 silvertip tetras... They are 1/2 to 3/4 inches, and were transparent grey this afternoon. Their fins and tails got red the moment I let the bag float on the water. An hour later, their bodies and eyes became blue ...
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