They might school together if you don't have enough of either type. Honestly, you could put alot of them, upwards of 50 neons in a 55G. Would be really boring in my opinion though, so please put some other types of fish in there with at most 20 or so tetras
EDIT: note, 50 teatras in a 55G by themselves, with other fish already in the tank, its less. Prob no more than 20 in the tank you have in your sig. Also...khuli loaches arn't schooling, but they like to be in groups so get atleast 4 or 5 more of those and maybe 15 neons