Ghost shrimp + betta=fine.
snail + snail=fine.
Adding a few RCS is ok right?
Ill provide hiding places.
I think if the betta is fine with the ghost shrimp and the snails, he should be okay with cherry shrimp too: O)
well some bettas will eat shrimp and attack any fish you put in with them, others are right softies. my first betta could live with any fish including male guppies. the next 3 i bought killed any fish i tried to put in the tank with them. the one i have no lives with 5 female bettas, a guppy, platy, molly fry, cherry shrimp, kuhli loaches, rummy nose tetras and golden pencilfish
they are quite aggressive putting another betta of the same sex with yours will start a fight.