thanks pondfreak,
It woudn't be a bad idea to get some platies or swordtails. But from what I've heard if you only have males (like me) they may fight but if you get a female and males you get like 50-90 babies!!!! But my males haven't nipped or anything so unless you like tons of fry then I would say to get all males. (50-90 is just what I heard from a few people not sure if it is true) You can tell them apart easily because the males have the swordlike add-on to their anal fin and females don't.