Thanks for your interest.
the tap water is fairly hard alkaline water but at least in the beginning I will be using RO water with additives to fix GH and KH. I want to take as many variables out in the beginning
for plant substrate I will probably use ADA aquasoil but I may use decorative gravel in some parts of the aquascape to deliberately have open space
pressurized co2 with timer to come on and off with light (similar to my girlfriend's setup)
I created a spreadsheet of species I would like to include in the aquascape and their optimal water conditions to decide what tank conditions accommodates most species.
in this case it will be colder (for best moss growth and best plant growth in general) around 75 degrees and moderately-high general hardness around 6 dGH(because of shrimps).
I would like to incorporate different plants in my aquascape. I may choose to focus more intense light (like a kessil led with a narrow lens) to do grow carpeting HC in some places or other high light plants(I reckon it needs a lot of intensity to give high par from +24") and for other parts I will use less intense lighting for other plants
I want to have many amano shrimp, some other species of ornamental shrimp, a schooling fish like harlequin rasboras, some Endlers, some Guppys and a few bottom dwellers like Kuhli loaches.