Blue light

yazeed · Oct 9, 2014

Can a reef tank do will with only blue light!!!!!

kdino1 · Oct 9, 2014

good question. I know blue leds are strong enough to grow on their own so im sure it could...im curious to see what others say. tagging along.

yazeed · Oct 9, 2014

Cause the water with that depth in the natutre will be a filter in each depth and blue one of the colers pass threw,i think!

Keithcorals · Oct 9, 2014

Short answer yes
I've seen it done for well over a year and the corals looked healthy and colorful

yazeed · Oct 9, 2014

That will be great

Orbela · Oct 12, 2014

Yes but I have seen my fish having a hard time finding the food except my deep water wrasse.

StikHedRon · Oct 14, 2014

I'd be curious if it can be done on an SPS tank! Would you get good colors and growth?

tribalturtle2 · Oct 14, 2014

Would it reduce unwanted algae growth, such as hair algae?

hatfielj · Oct 14, 2014

Yes it can be done with great success. Jason Fox lights at least one of his displays (possibily others?) with 4 blue T5s and 2 blue reefbrites. Obviously his corals do quite well with this.

exonn · Oct 15, 2014

i believe that the answer is yes only if you use T5 as a light source. It looks blue but have much wider light spectrum than LED does.

CountrySideCoral · Oct 15, 2014

I run my display reef solely on T5 - ATI Blue plus 6 bulbs total. When I first started this system I had 5 blue plus and one aquablue special but wanted to see if ATIs blue plus could really handle the job solo. After 6 months I see no negative result in a tank that contains finger leathers, various low end to high zoas/palys, multiple euphyllia colonies, and some entry level Birdnest SPS ( ponape and screaming green).

I agree that T5s and power compacts could run a reef system solely on 460nm-420nm spectrum as they contain the other parts of the spectrum just in a less visible form to our eyes.

Rausch · Oct 16, 2014

Yes i believe it can be done! Have run my tank for 3 months now on Actinic T5's and my corals are doing great! Under water the blue spectrum is a much stronger wavelength, but that being said, color wise im not too happy... I am adding a Kessil A360w today for the UV spectrum which i heard is the most important overlooked benefit of LED lighting and benefit to coral growth.