It's pretty easy to get them to breed. I've had only 2 of them together and they have but chances are increased when they are in a bigger school(5 or more). They will lay eggs usually after a water change and the female holds a few eggs at a time in her pectoral fin and brings them to a chosen male to be fertilized. She will prefer to drop the eggs in an area with a lot of current as this will prevent the eggs from getting a fungus on them. The difficulty comes in with trying to get the eggs out of the tank after they harden but before the other fish eat them. The first couple of hours the eggs are really soft and fragile! If the eggs are stuck to the glass, they have to be very carefully scraped off, some people will use a razor blade. If the eggs are on a leaf or on the substrate, you can use a bit of air line tubing to siphon them out. The eggs will have to go in a breeding tank with a strong current but power filter intakes will have to be covered with fine netting, mesh or a filter sponge to prevent them from getting sucked into the filter. Water changes should be performed regularly being very careful about temp and not sucking any eggs or babies. The babies take quite awhile to get big and you will be lucky if you get 50% of them to make it all the way to adulthood.
