I'm using two super blue. I can adjust individually the intensity of all three White, royal blue and regular blue which gives quite a wide range visually to choice from.

with the 80 dollar ai controller or third party controller you can adjust intensity of each of the 3 colors to adjust the color

Are you using the Blue?

Shelley, from what I read, the AI comes in the SOL white and super blue. The difference is that each has a different range of color. I believe the other features are all the same.
For me, I would be using my Apex to run them, so whatever that does, is good, I suppose :)

My concern tho, is on my tank, I figure I've got a rectangular area containing corals about 18" x 60"ish. Are three of either good enough for this area, with some corals being 24" deep.
Some site I read compared the AI to a 400w MH, but AI's site doesn't mention that anywhere I can see.

so far I think I'm leaning towards AI!! I'm not looking into spread as much as i"m looking for depth, At 30" tall I can add more fixtures for spread but that wouldn't help hit the bottom of the tank..

so how many radion would it take to do 96Lx30Hx40D vs how many AI's?????

I guess anothe question is should a person go with all blue's or mix them up 50/50 with the white fixtures??

the fixtures which are called the super blues are actually a mixture of the white royal blue and the standard blues.

And the whites are just all white?

Eight of either is where I would start. After that it would be personal preference to have more.

from what i understand yes.
here is a link to the site i mentioned earlier. i think it clearly shows the AI system to be the best going.
http://www.h2oplusomething.com/index...ment&Itemid=64