what kelvin 14k or 20k on 120rr sps

[hugh ngo]

I can't decide which bulb to go with, not using actinic..14k hamilton or xm 20k ..I like the look of 20k but, I need more par for sps..going all sps..help tank size is 72x18x22 . light will be 4" to 5" above water level

 

[Froggy]

What wattage ? If 250's I would go with the phoenix 14 K. Great color and PAR. If 400 watt I would go with XM 20 K. I am not a fan of the Hamilton 14 Ks in general. That is JMO

 

[hugh ngo]

its 3x250 hqi with icecap ballast

 

[Froggy]

I don't have experience with them but there is a thread where others have reported that the phoenix 14 K does not look or perform that well on an HQi ballast but does very well on an electronic ballast.

If you are using an electronic ballast I would go with the phoenix bulb. I assume when you said 250 watt HQi that you meant double ended bulbs correct ? Here is a comparison chart to compare bulbs and ballasts. Just fill in the blanks

http://www.reeflightinginfo.arvixe.com/select2lamp.php

 

[Ti]

14K, if u want mroe blue, 20K

 

[tonyscoots84]

are you looking for more growth or just for looks....

 

[hugh ngo]

running icecap ballast...looking for both color and growth..

 

[proboscis]

i run 400 w hamilton 14 k greatt color so-so growth on acro's my monti's have really taken off in size, and the color's are really nice my tank is 24 inch deep, i run standard ballast