can you put cherry shrimp in with bettas? are there any requirments for keeping cherry shrimp?
Generally no. I've had some level of sucess when introducing fully-grown adult shrimp with a betta that never made the shrimp=food connection, but it's hit and miss at best. with a passive enough betta and the right tank setup you can do it.
Keeping them is just down to feeding them and keeping the tank clean. They're like ottos in that they're high-volume low-nutrient eaters. They eat basically any kind of veggie-based fish food. Just make sure it contains *no* copper (read nutrient labels). I feed mine stuff like the hikari sinking wafers.
You can have something like 100 juvies in a cycled 10G without bioload problems. But they are very sensative to nitrite/nitrate poisoning, so planted tanks are better than non-planted, and regular WC's are a must. They also get stressed if they don't have things to walk on/climb/grab, so don't use a bare tank.
If you weren't trying to start a breeding colony, I'd say that 10 is probably plenty for a 10G.