120g fowlr diy led

[BryanMac]

I'm just moving from freshwater to saltwater. Getting a new 120 gallon (60x18x26) tomorrow. I've decided to start with just FOWLR and maybe in a few years switch over to reef.
I would like to go DIY LED since I like that aspect of the hobby and would like complete control over my lighting. I'm thinking of going with a single 6x20 heatsink from Rapid Led for now.

http://www.rapidled.com/drilled-tapped-6-x-20-black-anodized-aluminum-heat-sink/

This heatsink is drilled for 36 LEDs. Would 36 LEDs using 60 degree lens hanging 10" above the water provide adequate light for a FOWLR tank and light up the entire tank or would it just light up the area beneath the heatsink? From what I understand with fish only the lighting is mainly for aesthetics and the fish don't care or require much lighting but I would like the tank to be fairly bright.

Colour wise i was thinking of 1:1 cool white to royal blue and maybe add 1 lime green and 1 red just to experiment with the look of the tank.

Thanks for any advice, looking forward to this build, it will be a long process but that is most of the fun.

 

[BryanMac]

So I got the tank and looking at it I will have to go with a minimum of two heatsinks to get good coverage with the LEDs. Anyone have any suggestions for the number of LEDs and colors to get for a fish only tank?

 

[Mbmarkus]

On my FOWLR I have a fluval Marine reef LED and it is doing the job. All together light set me back $115.00 on Amazon. If your intentions are to switch over to reef when you get the hang of it. I would suggest investing the money in one or two ecotech xr30w. the new gen3 is what I have and it is absolutely amazing, but you can find a gen2 xr30w for a good price and that is a phenomenal light!