@washingtond wrote:
I am glad to see that you are having success with your Xmas tree said:If you're using Ice Cap the 14K are not as blue as the ATI Aquablue special 12K, and I'm using an Ice Cap 660 ballast. To me they're more like 10K with a touch of pink. And I thought being Ice Cap bulbs on an Ice Cap ballast they would have more PAR but my corals weren't thriving or coloring up under the combo of Ice Cap bulbs in the front where most of the corals are down at the bottom of the 20" deep tank.
So the 4 bulbs on the Ice Cap ballast that covers the front are 1-IceCap Twilight, 2-Aquablue Sp, 1 IceCap 14k. The 4 bulbs in the back are 2 WavePoint Blue, 1 WavePoint Actinic and 1 IceCap 12K. The corals in the back (porites rocks, Duncans) are only about 5 to 6 inches from the bulbs.