i suppose, if you can keep the water like 80F for the fry (like 30C?)
they need some infursia, which are really little things that live around plants. if you can put some tank water, with alot of plants (preferably ones with algae or something growing on them) that would work.
heres another idea, get some almost browning lettuce, put enought to cover the bottom of a jar, and pour almost boiling water into it about 60% full let it cool down completely and add the remaining area with old tank water, let the jar sit in direct sunlight (or flourescent) for 10 days and infursia should start to grow, using a turkey baster squirt some in for the baby shrimp.
ohh and remove momma shrimp as soon as she lays the eggs