You can try a dwarf crayfish species, they would be fine. As for the bamboo shrimp, they are not that easy to take care of cause they are filter feeders. I dont know about the ghost shrimp either, the barbs and gourami's may pick on it and maybe even eat them. Ghost shrimp is worth a try. I personally would go with a dwarf crayfish species, they dont bother fish either.