How big is your current clown? How long has it been alone? clowns turn to female if they're alone for a while. And there can only be one female, but they cant change back after they're female. If its not still small or its been alone for a little while, it's probably already a female. You would need to get a much smaller clown to have the best chance that the new one isn't female. If you get a bigger one or one that's been alone a while, then you risk having 2 females and they'll likely fight to the death.