Are there any plants that you are looking into by chance?
I think I'm going with lots of light. I think. I have a low light, lo-tech 30 now with the usual suspects (java fern, windelov, lace fern, anubias nano, crypt Tropica, hygro polysperma and a bacopa that doesn't get enough light) and for the new one, I wanted to go bigger.
I'm a big fan of limnophila aromatica and pogostemon helferi "Downoi". I may start with those and build out from there. I also really do like the two I mentioned earlier: Hygro pinnatifida and Crypt Pahang mutated.
But if I decide to go with discus as the fauna, then I'm probably back to low light.
I have lots of decisions to make.