Hey just noticed this... may have come across it before...
What kind of LEDs are these? If you are planning on growing ANYTHING with LEDs they will have to be 1. run on an LED (constant current) driver, and 2. definitely high power LEDs, specially in a tank that deep. I doubt these LEDs will work for anything other than a FOWLR, for sure if run directly off of your power supply. They are likely 25mA LEDs, but it would be best if you could figure out what the current rating is on each LED and how the array is connected (likely in series).
There are some great threads on NR about this, PM me if you are interested further in this... though I thought you had another tank thread around somewhere so this project may have been sidelined?
