Ok code-kid here we go. So first thing I got to say is that this is a lot of light for a smaller tank. We had to add a lot of lights to get the coverage and spread so you can more then keep anything, but because it is shallow your not going to be running it anywhere close to full power, I would guess somewhere around 25%. Anyway I went with 48 total lights, as this will give you an easy wiring for the 3 drivers that you wanted for individual control and it still kept things fairly tight light spread wise, here is a pic.
The shopping list:
24 Cree XP-E Cool whites 3 W
8 Cree XT-E Royal Blues 3 W
8 Cree XP-E Blues 3W
2 Cree XP-E Greens 3W
4 Cree XP-E Violets 3W
2 Cree Xp-E Cyans 3 W
2 ELN 60-48D Meanwell Drivers
4 fuses
4 5Watt 1 Ohm Resistors
1 artic silver adhesive unless you are screwing them down, which in your case I would.
48 carclo wide optics with holders.
So the concept for wiring would be that you would take one driver and run it in parallel with 24 of the cool whites on it, you will do this by seperating them into two strings of 12 with a fuse and a resistor on each line. Then on the next driver you would do the same thing but put all the blues and the other colors together on the 2 strings of 12. You could add another driver to seperate the colors even more but I do see any reason for this as no matter what you do you will have blues mixed in with the colors. And you save the cost of another driver???
Oh and the drawing I screwed up one thing, on the middle light row on the right side the last two lights should be a royal blue and then a white on the end.
hope it helps
Mojo