I have kept these guys for a long time. They are fun to watch. However, I constantly have berried females but have never once seen babies.
Tiger barbs make short work of ghost shrimp too, so be warned. As far as feeding the babies if you get any, just let them eat the food you feed the adults or if you take them out (or move the adults just before she drops the babies) green water, bbs, infusoria, anything tiny will work.
Aside from practicing breeding, these guys are quite worthless. They are fun to watch, but you can get RCS for around $1/each and they will fetch much more demand. There is a reason ghost shrimp are 10/$1.00.
Also, these guys die for absolutely no apparent reason. They are short lived, and when I buy 20, 10 might make it a week, 5 into the second month. I consider them the otos of inverts.