Yeah, the 6500 might be just the thing. I tend to like my tank a little bluer than most, I think so for me, your tank just needs a little red/yellow and it would be perfect.
Yes, Musky, I have the 72" constellation. I moved from a 29 gallon to my 180 in august and have been trying different combos since then... LOL
right now:
front
1. ATI blue Plus
2. UV Super actinic
3. Hagen Powerglo ( much like the aquasun,needed another bulb and did not want to wait to order it... can get it at Petsmart)
4. ATI blue plus
5. Ati blue Plus
6. Sfilogi Actinic
7. Ati blue Plus
I was running one of the ATI Aquablue specials in the 5th spot, but I took it out and added the 2nd actinic and kept the 4 blue pluses. I like it but think it is a bit dim. So, today I am going to take out one of the blue pluses and add back in the ATI Aquablue special in the 5th spot and see what I think. Since I like my tank a little bluer, when I had the Aquablue in there with the 4 blue pluses it was just too washed out for me. But maybe with the 2nd actinic adding back in the aquablue will be ok. sorry to ramble on, but this bulb stuff has had me in a tizzy. The one thing that I can say has been consistant is the growth of my corals....it has been fantastic using all T5s...I don't think I will EVER go back to halides.