Trace Elements?

Im trying to breed in Discus and since Im using R/O water, I will have to add some trace elements. However, Im not entirely sure what. Seachem makes Discus Trace Element liquid. Is that all I need? I already have Seachems neutral regulator and pH down if needed. Seachem also sells 'Equilibrium' and other buffers but what do I use? Is the trace elements all I did along with neutral regulator?

[taybelZ]

I always thought the Equilibrium was used to stabilize R/O water since the membrane cleans out everything in the water....ie making it Very soft and unstable.