Yes, I think male and female. This is a good idea. Get rid of the others, and don't allow yourself to get any others. You need to be patient (seriously!). They will not just start breeding immediately, it will take time. So don't think they're not going to breed and start dumping more fish in there. Here's another suggestion: use what you get for your other fish to make your TANK better. If you sell them, why not save that money to go towards your next tank? If you just get credit somewhere, get supplies to help keep your tank looking good (which by the way it does now!). Those 3 fish should be GREAT in your tank!!