Blue Light Quantity

[that Fish Guy]

Fluorescence and color are NOT the same thing. All corals have color, but not all corals have fluorescence. Even corals with strong fluorescence don't necessarily look better under solely blue light. Keep in mind that only the colors of light that are emitted can be reflected for non-fluorescent colors.

Take a look at this hammer coral. This is under two ATI Blue Plus.

And a red rock flower anemone.

And the same two specimens under 'normal' lighting.

Look at the hammer - would you rather see only the neon green or both the green and non-fluorescent purple? What would a take full of corals with that beautiful purple color look like under all blue light? Nothing, because that color simply wouldn't show up.

Put those under All Blue LED Not T5.

I have Bi-Color Hammers and Frogspawn under Blue LED and the Purple Does Glow with the Green.

 

[that Fish Guy]

LOL smart

OK have you made any corals ....well uncomfortable, with blue light?

The reason I keep returning to this is that some people say that blue light is so under utilized by corals that you can hardly have too much. I called one of the leading LED based light fixture manufacturers and the head guy believed that. It doesn’t sound very logical to me but many people do believe that.

With the new LED chips, this “Nth degree” question is a reasonable one IMO. For better or worse, I happen to like the bigger chipsets so I could get in trouble with the strong, almost single point, beams that they produce, regardless of how they are focused or defused.

There has got to be a coral that was burnt by blue light somewhere. Have you seen any of your corals get stressed with blue light alone? …or did you back off just before you thought that you would reach a tipping point?

Blue Light gives off More PAR than White Light so it would be easier to stress a coral out with more blue light than more white light.

ATI Blue Plus Bulbs are supposed to be the most powerful lights on the market.

Just because it does not look very bright to human eyes does not mean that blue light does not give off a lot of PAR.

I do not think that one spectrum stresses out coral more than another.

It is the total amount of light.