Curious if it's been done, are they easy like the other neocardinia species? I had a large berried female, but of course its a community 55, although densely planted and lots of driftwood, I doubt they made it.
They are
not. It has been done, and well documented. But I am of the opinion that, of all who attempt it, 15% have success, and less than 5% have more than a few from each brood reach adult hood. I base this purely on what I've read on the various shrimp enthusiest forums.
More people have had success breeding Macrobrachium shrimp. There are many that have a similar life cycle. Some Macro's reproduce purely in freshwater, some do not. Since the large Macro species (River Prawn) are farmed for food in many places in the world, the process is very well documented.
Basically the zoes do best when hatched in a slightly saline water. Then they need higher levels of salt. As they age the salenity levels must be dropped, down to freshwater, once they've molted from the final larval stage. Also, the whole time, they have very specific food and water quality requirements.
I highly recommend that you google 'Amano shrimp breeding', and or search the invert forums here and at
www.petshrimp.com.
I had success breeding M. scabriculum. However, it is much more like laboratory work, than hobby shrimp keeping. Journals are critical. Document everything you do, from the amount of light, to frequency of water quality checks and changes, as well as how you change water, and how you change salinity levels. Then there are feeding schedules, and a good microscope is also handy. You can gather the dead larvae and determine which larval stage it was in when it died.