Whats everyones Kelvin choice for refugium lighting?

[fpd4308]

And how is your macro algae growth? I just started using a 65 watt PC flood light at 2700K. I hate the yellow color and I have heard 5100K might be the way to go. Trying to see if anyone had any experience with this.

[CCR]

6500K Is sunlight. Will grow fine. Still yellow, but so is our sun:)

[COReefer]

i'm using a cf floodlight from lowes with the built in reflector and I get great macro growth

[CA2OR]

i'm using a cf floodlight from lowes with the built in reflector and I get great macro growth

 

are you serious?

[lancecobb1]

I had a 6500k t5 on my fuge and didnt get much growth till it fell into the sump and stopped working. Went to Home Cheapo and bought a 2700k cf floodlight with the built in reflector with the socket for like 15 dollars and i am getting way better growth now!

I run the light 24/7.

Lance

[undrtkr_00]

Read the link below for a pretty good review of one guy's experience with different bulbs, etc:

 

http://melevsreef.com/fuge_bulb.html

I use the 5100 bulb he recommends and am happy with it, but have not done "A-B" testing with any others like he did.

 

HTH

[fpd4308]

Ok, I now have a 2700k, 5000k and 6500k bulb. I will give them a try and see which one I like and the algae likes the best. Right now we are using the 6500k bulb.

[CCR]

" Fourteen days later, the 5100K bulb proved to be the better spectrum, with more obvious growth.."

Good read undtkr. Would you please add the link to

 

http://www.pnwmas.org/forums/showthread.php?t=12128

[undrtkr_00]

" Fourteen days later, the 5100K bulb proved to be the better spectrum, with more obvious growth.."

Good read undtkr. Would you please add the link to

 

http://www.pnwmas.org/forums/showthread.php?t=12128

 

Done. (dang 10 char rule...)

[wanareef]

Wow, the 51k had the most growth, I would have thought it was the 65k. That's what I'm burning in my fuge CF flood light

[COReefer]

are you serious?

 

dead serious. I got the idea from melevsreef

[RedCloud]

I believe CA2OR asked that because you didn't say the Kelvin choice for bulb. So your post did not make sense. I use an 18 inch t8 at 5500K and my Macro grows good, but i haven't really compared much to other bulbs.

[ThePremiumAquarium]

I have used literally over a dozen differnt light spectrums and get the best growth out of the 6500K spectrum with the CF screw in bulbs and reflectors. I currently run 2 6ft VHO actinic daylight bulbs with about a 10-12K spectrum. I get way more grow, but would guess it is because of the wattage and intensity of the bulbs. Having a slightly higher nutrient leve will also help with growth if that is what you are going for.

 

 

Garrett