Adding new discus to a tank

[carlissilva]

Hi I have a 90 gallon tank with a fluval g6 filter in the tank I have loaches , rainbows , tetras , plecos and a small discus and the plants are plastic I'm a new fishkeeper.
I just wanted to know if there would be a problem if I add another small discus to the tank will they fight until one die or is the tank big enough that they will not fight or is there a way so that they will be ok ?

 

[F I S H I]

Does not seem to be a problem .....
I think they got along pretty well together .