Well... Ive placed the LED
's at the top of the tank and will not be filling the tank that high. I did test the LEDs and seemed to be ok, but there will always be a 2-3cm gap between the LEDs and the surface.
I got my substrate from the internet and managed to plant my hairgrass, also got my moss tree assembled with fishing line and alas, my aquarium finally gets some water in!
Looking forward to the hairgrass filling out and carpeting and the moss bushing up!