very nice, looking good. the red ones are cherries, the black and white striped ones are more often called bees or bumblebees than zebras from what I've seen, if you're reading around and dont see anything about zebras.
the cherries are supposed to prefer harder water and the bees, softer. But they're pretty adaptable so I'm sure you'll be fine so long as you arent at either extreme, my bees are in harder water and do okay.
If some of them die I wouldnt get down on yourself about it, those are clearly adults and in my experience you can have everything pretty much just right and still sometimes lose some new adults. Just like fish and people, the older they get the less happy they are to adapt to new surroundings, or maybe they are just older shrimp, they dont live for a very long time. I'm hoping for the best for you, but if you have some bad luck, mustafa ucozler at pet shrimp sells only small juviniles, and I've always had better luck getting them to adapt. You have to be patient for them to come into breeding age, but no deaths and having them in your tank for the entirity of their breeding lifespan and knowing they arent coming in pregnant with some hybrid eggs is nice.
I think a cherry is a cherry is a cherry, but when your bees fly into breeding the ones with well defined bands and more white than black are considered preferable from what I understand, as are ones with more opaque coloration.
