What temperature are your bulbs?

[Animal-Chin]

I have a 4 bulb T5 and I'm about to change the bulbs. Currently I have 2 10,000k and 2 blue lights in it. I want the best lights to make my coral and fish POP. What do you suggest?

 

[AquaRick]

I'm a fan of ATI bulbs:

2 aquablue specials.
1 blue plus
1 purple plus (or blue plus)

 

[Flreefer]

With a four bulb unit I would recommend the same setup as Aquarick suggested.

 

[sanderson417]

Following the recommendations from many on this site, I purchased and installed ATI bulbs last week. Wow!!! What a difference. I strong recommend these bulbs.