Blue LED vs White LED Moonlight

Chris_A · #1 03-09-2009, 06:27 AM

The blue light is solely for us. The human eye doesn't percieve the blue spectrum as well as some other's and it there by looks "dim" to us. On the other hand, I've read that fish percieve blue VERY well... a blue moon LED *could* be bright to them. I've been thinking of a moonlight for a little while now, it'll be white or red.

Chris

Naked Wookie · #2 03-09-2009, 01:56 PM

I personally wouldn't mess with red as its not a natural colour spectrum for corals.
been having to decide on a MH bulb and what Kelvin to us and this study is rather interesting.
turns out enough red light and you bleach certain coral which is natural when you think about how well red light doesn't penetrates water vs blue.
definitely needs some further studies to find out if it applies to softies and shallow water corals as well.
http://www.advancedaquarist.com/2008/12/aafeature1

mike31154 · #3 03-09-2009, 03:11 PM

What we need is for one of our scuba enthusiasts to go for a night dive under a full moon with some light measuring instrumentation......uh, par meter, some sort of spectrometer? Then use the same instruments in a tank at night under different colour LEDs.

Chris_A · #4 03-09-2009, 04:38 PM

Quote:

Originally Posted by Naked Wookie

I personally wouldn't mess with red as its not a natural colour spectrum for corals.
been having to decide on a MH bulb and what Kelvin to us and this study is rather interesting.
turns out enough red light and you bleach certain coral which is natural when you think about how well red light doesn't penetrates water vs blue.
definitely needs some further studies to find out if it applies to softies and shallow water corals as well.
http://www.advancedaquarist.com/2008/12/aafeature1

Interesting article and a good argument against red as a moon light. Thanks!