Can any African or Tanga mix with Discus?

Hi,
I've never seen any African or Tanga Cichlid mix with a Discus in a tank. I wonder if its possible since they are all categorized under Cichlid family?

[nathan tan]

Discus and African Cichlid are from very different biotopes , temperament and water parameters,it is not recommended to kept them in the same tank.

[Young Man]

they r both classified under cichlids but they have different requirements for water parameters,therefore it is not advisable to keep them together (:

can be kept in same water parameters, seen this many times even by large breeders, but not in same tank as most african cichlids too aggressive for discus.