most people told me the warm white is pointless but i was reading a book today on led lighting and zoas and found out the warm white is actually a profit for stronger growth, have you heard anything on this? :reading:
Well, please take a look at the thread below:
http://www.reefcentral.com/forums/showthread.php?t=2372965
The thread is about flow, but the subject about light spectrum and growth came up. It is also related to the health of the organisms (corals/zoas).
I tried to explain my point of view and past experiences in regards to spectrum using 6500K Ushios, and I also found a video with Dr. Sanjay and Mr. Paletta in what I agree with their explanations.
It is good to point out that I've heard many people having success with 20000K, Radiums MHs, showing great growth/reproduction rates also. I do not know if those people ever tried 6500K bulbs to compare the growth. I do believe they could have a great tank with those bulbs!!!! The 6500K Ushios are still winners for growth though.
It is important to say that I think the bottom line here would be a balance of white/blue light and intensity/photoperiod deal. I do not believe that the MORE warm white, the MORE would be the growth. There is a balance and it needs to be reached. BUT there is aways a tendency of greater growth with the presence of a 6.500K bulb, no doubt! The excess is what wouldn't be good. Blue needs to be present. Just my own experience!!
I also believe that with a good pleasant viewing of any artificial light, close to the natural spectrum seen in shallow waters, would be aways my goal. The balance of blue and "white" bulbs is what the ideal would be IMO/E. Not a fast growth, but a balanced environment without accelerate the metabolism and at the same time keeping the pigments vivid.
!0000K is what I like most! Now… there are 10000K bulbs that would NEVER be what I would suggest. I call the reef crest light (10000K) a crispy white to our eyes. many people see that differently because there are so many 10000K bulbs with totally different colors (pinkish, whitish,…).
You know what? One or two warm LEDs in a fixture isn't bad at all!!
It's up to you, really. I think it's a personal taste too.
You need fast growth? Go ahead and put some warm bulbs in a balance spectrum and you'll get it! Watch the video! It's very nice...
:thumbsup:
>Please tell me what's the name of the book!<
Cheers,
Grandis.