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Thank you very muchBluer spectrum with moderate to heavy actinic supplementation if you want to pull the best colors, whiter spectrums might produce faster growth though. I personally go for best colors.
I have found that a degree of white is required for some corals to color up properly. Example: When I was just running Blue+ and Pure actinic bulbs over a display, Vivid Rainbow browned out to a degree. A couple months after swapping out one of the Blue+ for a Coral+ it regained full coloration. I noticed similar effects with a couple encrusting montiporas as well.
Until reading this thread I have never encountered (A), (B) has been much more consistent.Another note. I find it amusing that in this thread and in many others, you have two groups of people among the many.
A: blue lighting is for growth and whites are only for our viewing enjoyment
B: white lighting is for growth and blues and just for our viewing enjoyment.
Both very adamant on being right, with data to support. Some swearing that 20000k bulbs and blue heavy led settings will yield the most dramatic growth, others swearing those colors will yield sluggish growth in comparison to 6500k and 10000k.
Funny
Until reading this thread I have never encountered (A), (B) has been much more consistent.
Can't they both be right!? ;Smuggrin ;Bookworm ;BrbAnother note. I find it amusing that in this thread and in many others, you have two groups of people among the many.
A: blue lighting is for growth and whites are only for our viewing enjoyment
B: white lighting is for growth and blues and just for our viewing enjoyment.
Both very adamant on being right, with data to support. Some swearing that 20000k bulbs and blue heavy led settings will yield the most dramatic growth, others swearing those colors will yield sluggish growth in comparison to 6500k and 10000k.
Funny
Haha! Good answerSunlight
Very good pointNearly every coral in your tank is collected on one breath and will have nearly the same sunlight at 2 feet. This is a 6500k spectrum. This looks pretty yellow, so even though it is best for growth and actual color, you will likely want to blue-it-up for illumination to look at the corals.
There are few single lights that can both render color and illuminate color well - a few different types of halides. Some LEDs can do Ok with a few different programs using different diodes. You need a mix of T5 bulbs to do this too.