I have kept many species together.
All in one large tank I have had:
and i think maybe a couple more aswell. All seemed to get one fine and this worked for a few years untill I only had indians and pinkwinged left as i didnt breed the others!
I try to keep one or two indians with hatchling Mckleays and leaf insects so they can chew the edges of the bramble and make it easier for the little ones to feed. I may have one or two spare indians if you are stuck. Just let me know if you still want any.