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zy112 · 03-05-2008, 01:32 PM

A lot of it depends on what the reefer want. If your eyes like blue go with a higher kelvin bulb. Some par and intensity may be lost though and coral growth will be slightly sacrificed. Personally, I have run 10-15k bulbs with actinic supplementation. With no actinics, I would probably go with 20k's. Seems like the trend keeps going bluer.

03-05-2008, 01:32 PM	#13 (permalink)
zy112 Harlequin Tuskfish Join Date: Dec 2003 Location: IN Posts: 984 View Gallery Karma Komment	Re: 10k 20k? A lot of it depends on what the reefer want. If your eyes like blue go with a higher kelvin bulb. Some par and intensity may be lost though and coral growth will be slightly sacrificed. Personally, I have run 10-15k bulbs with actinic supplementation. With no actinics, I would probably go with 20k's. Seems like the trend keeps going bluer. __________________ Zach