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View Full Version : What light spectrum do corals need?


superdragon
01/07/2015, 05:02 PM
Coral photosynthesis spectrum for zooxanthellae
I know this is an open ended question that can cause a stir, but I just want to learn not create a feud about light. I also understand this is coral dependent too.
Does anyone know what the ideal spectrum is for a mixed reef? I understand that with zooxanthellae and chlorophyll a and b that are important. Aside from time, intensity, par, pur... are the ideal ranges about 450nm and 420nm with some sort of 14k light for growth?
I'm confused. :fun5:

mcgyvr
01/07/2015, 05:19 PM
Have fun reading :)
http://www.advancedaquarist.com/search?SearchableText=spectrum

superdragon
01/08/2015, 08:26 AM
Have fun reading :)
http://www.advancedaquarist.com/search?SearchableText=spectrum

not exactly helpful

jda
01/08/2015, 10:25 AM
350-700nm.

The spectrum required to grow them is not necessarily the same to make the look good.

Wazzel
01/08/2015, 10:28 AM
Considering photosynthetic corals live from the surface to 100 ft or so it is hard to say what is an ideal spectrum. Some get light that is almost the same as surface light and others get light that is almost all blue. To support the corals in our aquariums we need to make a reasonable compromise.

pwreef
01/08/2015, 05:15 PM
This is equipment forum. Are you looking to buy a light or build one?

mcgyvr
01/08/2015, 05:26 PM
not exactly helpful

well with the exception of the first hit that comes up about Kessils. The next 4 or so feature articles seem to be exactly what you seem to be looking for.. :hmm4: