Those are some stunning looking discus guy's! I only have a red turq. right now but, im getting a Red Malbro discus on saturday! Hopefully will post some pic's!
If you allow me a few changes, the sand on the left a little lower at the front.
The sponge filter put in an extra canister filter, hide your heater behind the plants or wood, please understand those are positive critics again great looking tank and fish!!!!!!!!!!!!