LED Intensity

[intarsiabox]

Originally Posted by Aquattro

Ya, I used that as a guide, although he doesn't really have much for coral at this time to see how SPS react.
Dez also uses 3 and has great results, although he did add supplemental strips to fill in the shadows.

I think 4 units would eliminate shadows but would personally try 3 and then see if the extra cost is needed or not. My tank is only 20" deep so I can't say if raising the lights a couple inches higher and cranking up the intensity to 100% (over time) would give you the effect you are looking for or not. While I'm sure it'll grow coral just fine, beauty is in the eye of the beholder.