I'm setting up a 40B in my newly alloted "fish room" in my basement. (Thank you wifey
) I have a great deal of flexibility in this area, and it is my play area, so aesthetics aren't critical, meaning I have complete autonomy as to hanging something from the exposed joists above me. Obviously I don't want to build something that will look like crap.
I'm thinking of using a set of 2 clusters. The clusters would be centered approximately 9" from the centerline of the aquarium, splitting the distance from center to each end. It would seem the overlap from each cluster should provide more than enough coverage in the center and to each end. Each cluster would contain the following:
1x Philips Luxeon M 4000K 12W @ 700ma
1x Phillips Lexon M 6500K 12W @ 700ma
3x Luxeon ES Tristar separate wiring (Royal Blue, Cyan-Turquoise, Deep Red)
I'm thinking I'll need a 36v power supply as the Vf on the Luxeons at 700mA is 11, so 11x2=22v plus 3V for the LDD =25V. Is my understanding of this correct?
I plan to run the 4000K and the 6500K's each on their own LDD-700H, and the Royal Blues and Cyan-Turquoise each on their own LDD-700H as well. My question is regarding the Deep Red (660nm) It seems most places recommend running these at 350ma. Does running them on a LDD-350H sound feasible, Is three of these per cluster enough red or it is overkill?
Also, I see most people are including violet in their full spectrum builds, is this a recommended approach, and should they be on their own channel or is it ok to pair them with something else? Finally, will these clusters provide sufficient PAR and provide sufficient coverage if suspended approximatly 12" above the top of the tank? So approximately 28" above the substrate? Or do I need to consider adding additional LEDs or Optics? I'm looking for High-Medium or Low-High Light levels. This will be a "high tech" build, with pressurized CO2, and EI dosing of fertilizers.
I'm thinking of using the Coralux 5up LDD board. I've got a few arduino units coming in later this week, and would like to know if the 5V PWM dimming on the arduino is compatible with the PWM input on the corlaux board. From what I'm reading it looks like it can support that. Just would like clarification on that.
This will be my first full spectrum build, I'm not a total noob to LED and DIY builds in general, but I am more than open to receiving criticism and suggestion. I'd like to only do this once, so please offer anything you're thinking, thanks in advance!