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nice kid, cant wait for it to clear up a little, dont forget to post more!
 

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Has to do with Par. Normal lighting will not supply the par (intensity) needed for the zooxanthella (symbiotic algae) living in the coral to photosynthesize. Which means, most corals will bleach/starve!

More important that wattage, is the color temperature.

10,000 Kelvin is pretty much right in the middle. you can go as low as 6,500K or as high as 20,000K. But anything outside that range is pretty much useless for supporting corals. And even inside that range, there's MUCH debate about what color temps are best for certain types of corals.

need to look into specialized Reef lighting.

here's a previous discussion of the week on the topic of lighting. Prob a good place to start if you need more info:

http://www.thereeftank.com/forums/showthread.php?t=60481
 

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Discussion Starter #12
skeety said:
Has to do with Par. Normal lighting will not supply the par (intensity) needed for the zooxanthella (symbiotic algae) living in the coral to photosynthesize. Which means, most corals will bleach/starve!

More important that wattage, is the color temperature.

10,000 Kelvin is pretty much right in the middle. you can go as low as 6,500K or as high as 20,000K. But anything outside that range is pretty much useless for supporting corals. And even inside that range, there's MUCH debate about what color temps are best for certain types of corals.

need to look into specialized Reef lighting.

here's a previous discussion of the week on the topic of lighting. Prob a good place to start if you need more info:

http://www.thereeftank.com/forums/showthread.php?t=60481


to my understanding an halgen bulb is almost a MH bulb the old bulb does fall between 6,500 and 20,000k. the atlantareefclub has PAR meter rentails so i might do that.

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