Your 10K bulb could also have helped the coral to lose some of its color. :wink:spaulr":2hql8yg4 said:No, it is
Montipora Digitata Coral, German Blue Polyp - Aquacultured, ORA from DFS. Man has it grown fast!!! I have a single 150w 10k AQ halide in the middle and 2 39w t5s. Also, the digitata did lose some of the blue color in the polyps and the entire skeleton lightened a bit, although I'm begining to think that the 39w T5s just don't provide enough oooomph (I have 2 of them) compared to even 2" VHO tubes. I don't have the money to experiment though. Otherwise, the coral seems pretty happy. I'm stil blown away by the growth in 2 months.
If I had a 150 watter I would try the hamilton 14k. A friend of mine has the 250 SE and compared to my 250 DE phoenix they are nice and blue but have more white punch. His tank with nearly the same lighting set up as mine is much brighter. Or maybe the XM 15k for just alittle more. Check out this site for some bulbs.14k 150W DE bulbs?
Instead of the white color they are all blue now- with polyps starting to come out the tips