20k lighting

[Pumped]

A lot of corals look more colorful under 20k. Do corals achieve different colors depending on k over a period of time, or does the k make you see different colors?
Hopefully that makes sense.
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[chrishayes]

Yes and no, Some species do and some dont. If you google your question there is an article where a guy did an experiment on this with 3 differnt light sources with identical parameters in the tanks and found basically that some species gained more ACTUAL color under 20k but some did not. Wish I could remember the article.

 

[ricardoz]

20K bulbs are good for blue and purple coloration(so do the 420nm-450nm super artinics), for other colors, i think they are not really helpful, but only let u see a diferent color

 

[sfexplicit]

We talking about 20K MH, T5's, or LEDs? And what's your idea of 20K?

 

[cbrfire]

I've had good luck with my 20K MH lights when it comes to growth of all my SPS

 

[sminker]

20K all the way.

FYI: Ushio and Reeflux 20K bulbs look identical with electronic ballasts.

 

[ros_sco]

there is an article where a guy did an experiment on this with 3 differnt light sources with identical parameters in the tanks and found basically that some species gained more ACTUAL color under 20k but some did not. Wish I could remember the article.

This one?

http://www.advancedaquarist.com/2008/3/aafeature1

 

[Pumped]

thx ^^

 

[chrishayes]

This one?

http://www.advancedaquarist.com/2008/3/aafeature1

yes, thats it thank you!

 

[allsps40]

Im a big 20k user as well. I get good color and good growth with 20k bulbs.