The females have the orange bellies, the deeper the orange the more ready they are to breed. I only bought a pair, no other fish in my tank, and they started laying eggs within a week.
I don't think you need to buy 6. Even the worlds hottest women would sleep with the worlds ugliest man if they were the only 2 on a deserted island forever.
I don't think you need to buy 6. Even the worlds hottest women would sleep with the worlds ugliest man if they were the only 2 on a deserted island forever.