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Registar
24 - Royal Blue - 450-460 nm
12 - Branco > 7000 K
8 - Azul - 455-475 nm
4 - Violeta - 400 - 420 nm
2 - Vermelho - 615 - 635 nm
2 - Deep red - 640 - 660
Lembro que os leds brancos tem muito comprimento de onda entre os 500-600 nm que complementa os verdes e amarelos, e muito importante também o pico de +/- 475 nm (azul).
Wavelengths for Corals
Wavelength Color Application:
Below 400nm Ultraviolet to Violet
Wavelengths below 400nm have excessive energy and can damage tissues. However, some corals produce colored pigments (blue, purple, pink) in their zooxanthellae cells for protection from the UV light.
400-500 nm Violet to Blue
Wavelengths between 400nm and 480nm are the most important ones for photosynthesis of the brown algae in corals.
500-600 nm Green to Yellow
In most cases, wavelengths from 500nm to 600nm lower the efficiency of photosynthesis. But some corals may still need them.
600-680 nm Orange to Red
Wavelengths between 600nm and 660nm are the most important ones for photosynthesis. However, they are easily absorbed by ocean water and therefore suitable for some corals only.
Above 700nm Red to Infrared
Wavelengths above 700nm carry to little energy and do not effectively simulate photosynthesis.
Similar to growing plants, blue and red lights are essential for coral growth. However, blue light plays a larger role as most corals live in a habitat that is deep inside the ocean, which is an area where less energetic red light is almost absorbed. Most of them rely on the penetrative blue light to survive. However, some of them can still survive with little red or even green lights. It depends on which species of corals they are.
In nature, UV rays are filtered out in deep ocean. The deeper the water, the more UV rays are filtered out of the spectrum. Since corals produce colorful pigments as a protection from the UV rays striking them, shallow water corals have more colors: More UV, more color; Less UV, less color. Again, whether UV rays are necessary or not depends on which species of corals they are.
50 Leds?
Eu faria:
25 violeta
15 royal blue
10 brancos
Eu faria:
25 violeta
15 royal blue
10 brancos
Hugo, eu teria algum receio em usar tantos violeta, por alguns estudos de universidades que li, demasiada concentração violeta provoca um boom de crescimento mas acaba por queimar os corais a médio prazo, é como se fosse uma congestão, absorvem inicialmente demais os violetas e depois ficam fartos.
Abraços
Fernando
