Recently I decided to purchase Platy fish for my 10 gallon tank and I planned on buying 3 males to avoid fry and other problems. Well Petsmart gave me two males and one female even though I pointed out the ones I wanted, not that i'm blaming them but now I have to deal with this problem. At the moment, I have one male and female in the 10 gallon and the other male is isolated in a little one gallon tank. My question is what should I do about the little guy? I thought about buying a another female for the ten gallon so I have a 2:1 ratio of female to male, and if its okay to put the isolated male platy in my 5 gallon with my betta fish? I don't know what to do and I can't return any of the fish since it's been more than 14 days.