oy...
You probably know you should NEVER put two males in the same aquarium together. However, there's an exception to the rule, using this top secret technique to simulate conditions from nature, which allows you to get away with having up to two males (and 4 or so females) together in a 10+ gallon tank... with zero problems whatsoever! (Page 22)
i have one male and 3 females on my tank.
no problem, whatsoever.