Zagz,
I have a 54 gallon corner tank and i will soon (Within the next 2 months) be turning it into a planted tank and house mainly discus. But right now my discus seem to be doing fine with its tank mates:
3 rainbows
1 swanfaldi barb
3 green koreys
2 rosey barbs
2 flame gouramis
tHE PH IS AT 6.4 AND I HAVE THE TANK AT 82 DEGRESS
lMK IF THIS IS AN AQUATABLE ENVIROMENT FOR THESE DISCUS.