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I would think you would be ok with 2 pairs. Once they pair off each pair would mostlikly protect their side of the tank. Maybe you just might want two females and one male. You might have an alpha fish fight but who knows.
I would think you would be ok with 2 pairs. Once they pair off each pair would mostlikly protect their side of the tank. Maybe you just might want two females and one male. You might have an alpha fish fight but who knows.