This is how I breed them: Get some sphagnum moss from home depot (mosser lee) and boil it. Then cram a small tank with it (5 or 10 gallon) and have a small sponge filter and let it sit for about a week. It needs to be cleaned well (using salt solution) prior to the sphagnum moss. Then put a pair in for about 2 days and remove. The fry usually show up after about a week where you can see them and you can start feeding them. The sphagnum breaks down and makes enough infosoria that they will have food when they are slivers. This is not a way to produce hundreds, more like 30-50, but it is good for a hobbyist with tons of other stuff going on.
I also use a small container of sphagnum in permanent set-ups with larger barbs and then remove the container every two weeks and see what hatches out. Kind of like nothobranchius killifish breeding.