We have tried numerous times with no avail. We had a handful of peps in our 90 which would hatch a brood about every two weeks like clockwork. We set up a tank for the babies, but we could never find the perfect balance between feeding enough to keep them alive without dirty-ing the water to the point of no return. We kept a few alive long enough for them to start looking like shrimp, but they never made it... It was a good bit of work the few times we tried it though.
Good luck!!