Well to start out the tank I am going to build a LED fixture for a 30g aquarium which is 36"x12"x16". I want to keep LPS, zoanthids, and clams; and eventually move up to SPS corals.
I want to use the Cree XM-L LEDs but I don't know how many I can safely put over a 30g aquarium without killing off coral.
Which drivers would work with XM-Ls as well as be dimable and affordable?
What color ratio would work best using XM-Ls and RB?
And my final question is should I use a row of LEDs in a line or make 3 LED pucks on a 4.25" x 23" heatsink.
Why do you specifically want to use the XM-L? Honestly, for a tank of your size, it's not necessary. It's not like you are going to use fewer LEDs when compared to XP-Gs. An XP-G and XP-E setup will do everything you want, and more, and cost less than the XM-L setup.
If you want to go with a traditional grid style setup, you can easily light that tank with 24 LEDs in a 12x2 setup. That will keep everything and anything you could possibly want when driven up to 1000mA. I advise getting dimmable drivers so you can easily set the color temperature, and the overall intensity to suit the needs of the tank.
Ok thanks for the reply I just ordered the XP series of cree leds. I ordered a 2:1 mix of RB to NW and was wondering if staggering them like this would work.
Or would a 3 led cluster w/ 80* optics work, and if I were to go with option 2 what would be the best distance to space the clusters from each other.
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