Fwiw, when I discovered I had pregnant Ghost shrimp, and they were my first shrimp ever, I wanted to raise the babies. Soon learned they had larvae, and determined to attempt raising them anyway. I set up a 5G tank, brand new, with moonsand substrate, a big chunk of wood and lots of plants. Mainly java fern and moss, with several frogbits floating. I netted the pregnant shrimp when the eggs had descended to the point it looked like they were about to fall off, and put them in the 5G. There were several shrimp who were pregnant, they all went in. I didn't take them out after I saw the eggs were gone, and I was never able to see any larvae.
But four days after the first shrimp appeared eggless, I came home to find tiny shrimplets floating at the surface. Very tiny and they didn't move. You could see the bent backs, a suggestion of the legs and their eyes. When I turned out the lights, they sank out of sight, almost as though they were sliding down a spider's web line. When I turned the lights back on in the morning, they rose up in the same straight lines, and they did this for a few days.
I fed them microworms, having nothing else to offer. For that first try, I didn't feed the larvae anything, as I didn't have anything but there were still quite a few shrimplets. For later broods, I had Golden Pearls 5-50 microns and cultured liquid algae, nannochloropsus, cultured in FW of course. I'd fire about 100 mlx of algae into the tank twice a day for the larvae after I noticed the eggs had been dropped. I used a double sponge filter and I did water changes by putting an air line into the uplift tube of the sponge filter, so I wouldn't suck up any shrimp or larvae.
After a few days, and I wish I'd kept daily records but I didn't, sorry, I noticed the shrimp were starting to move in directions other than up and down.I also noticed tiny moulted shells floating around. First thought they were dead shrimp, but not so. When I first fed microworms, and one came close enough to a floating baby, it would grab it. You could see the little backs bend and jerk when they reached for a food item.
Once they started moving, it didn't take them long to find the bottom and they grazed on every surface. This first batch were fed microworm a few times weekly, and nothing else. They seemed to be doing fine on biofilm and the sponge filter. In an older tank I'm sure they'd have grazed the glass too, but all the plants and wood and sponge came from established tanks and were well supplied with biofilm. Oh, yeah, they also grazed the roots of the frogbit.
I kept the temperature at about 73-74, with lighting 12/12. Not all survived, by any means, but I raised at least a couple of dozen to adulthood that first time and they in turn had babies of their own. I started taking the Mom's out after they dropped their eggs as it appeared they might be eating the babies, which was probably not so surprising. Taking out the Mom's upped the survival rates.
I later had quite a few survive to adulthood in my 30 G community tank, which had other shrimp species, danios, cories & kuhli loaches, all of whom might have been expected to dine on the larvae and babies. The other shrimp were Bamboos and Snowballs, [the white cherry shrimp], and the Snowballs also had lots of babies who survived in the community tank.
Assuming you can solve whatever caused these deaths, if you get more pregnant shrimp, raising babies is not that difficult to do. It's just not quite as easy as it is with high order shrimp like cherries who don't have a larval stage.
