View Full Version : Which 2 T5 39W bulb combination = Radium?

11/18/2008, 05:55 PM
Hi guys,

Can anyone suggest me 2 x T5 39W bulb combination that will give me the Radium (20K) color? What do you guys think about the following combo?

1. UVL Super Actinic + Fiji Purple
2. ATI Blue Plus + Fiji Purple
3. UVL Super Actinic + ATI Blue Plus

Thank you guys.

11/18/2008, 06:01 PM
The reason I am doing this is because I can enjoy my tank even after my 2 x 250W MH are off.

11/18/2008, 07:27 PM
I would say two ATI Blue plus would be close to that. Or that super actinic and the blue plus you have up there. That would be close to a 22000k look

11/18/2008, 07:29 PM
It would be hard to get an exact 20K look with only two lamps.

11/19/2008, 05:57 PM
I think you'll come closer with the ATI Blue+ and a 14K color bulb like the KZ 14K or the ATI Aquablue Special