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Are there larger fish in the tank with him? If so, he is probably hiding to get away from them. This is because he is a hybrid fish and sometimes their deformities are so severe (although you can't tell) that they are not as aggressive as they could be. They learn to live with their disabilities and can still defend themselves to a certain extent but not as well as your more aggressive fish.

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16y ago

What else can I help you with?