I am impressed with your setup especially the lights.
Anyrate I use 1" canadian sphagum peat moss (1'x1'x3' plastic bale $11), 1" play sand (50# bag $3), and 1" pro choice select (50# bag $8). Put in one layer, wet, clean and level, the do next layer.
Before filling the tank I add plants. 4 bunches of anacharis, 4 vals, 4 small potted types, 1 amazon sword.
Then fill the tank with water poured over a dish.
wait one week.
add 1 fish
wait 1 week with no food added.
Start feeding 1 flake per day.
For reference: Pro's Choice Products
As a reminder: no water changes just top off, no chemicals, no mechanical filtration/circulation, no chemicals. Literally just the tank, substrate, fish, and water.
just what I do and worth at most