Need help with lights

[rot_stupid]

HOpefully someone can answer this pretty quick. I currently have a Sunpod MH lighting system we bought from a guy a while ago. it has 3 250W bulbs, with 10K and 14K bulbs. Unfortunately I don't remember which is which. 2 of my bulbs are a brighter blue, and one is a deeper purple. I know it's probably hard to tell without looking at my lights, but can anyone out there id them?

 

[scsinet]

14K is bluer than 10K. So I'd say the deeper purple is probably the 14K since the color spectrum gets more blue-purple the higher you go on the kelvin scale.

 

[rot_stupid]

Thanks, that's what I thought, but I wanted to be sure. Does it matter which one for a reef tank or is it personal preferance? We currently have a few brain corals, some leathers, frogspawn and a flower pot. We plan on adding a carpet anemone and an acropora.

 

[jackri]

Personal preference.... as a rule of thumb the 10k's will produce better growth with a more yellow light... the higher the kelvin rating the more blue effect you get but slower growth.... although people with 20k's can get excellent growth as well.

 

[rot_stupid]

Thanks for all the help.