Nice job! You actually have a couple of options. I can provide some insight since I'm currently breeding them. The good news is C. pygmaeus (assuming this is the species you have) is not an egg or fry eater, so you can leave the eggs where they are as long as it's a species only tank, shrimp are OK. If not, you can move the eggs to a 2.5G w/ an airstone or sponge filter and water from the breeding tank and hatch them out there. This is how I'm currently doing mine. With a bare bottom tank, it's easier to feed microworms, live BBS, & Hikari First Bites, because you can really gauge how much your feeding or need to clean up. You could also hatch them out in a floating container as previously suggested, but you're still going to have to put them somewhere, so might as well start a 2.5G or 5G tank and find out what works best for you. My personal favorite method is to put 12 in bare bottom 5G w/ a sponge filter, some moss, and no other inhabitants and feed them mostly live foods. I've had them lay over 70 eggs before and left them in the breeding tank and most of them hatched and most of them survived.
Best of luck!