Originally Posted by
mastertech
http:///forum/post/3203811
what are "those lights" you are refering to?
the i have a 18 led array (54w DIY build) and it is at least 2 times brighter than the 96w CF i replace. i used cree leds and im certain that it will support the growth of coral. Nanotuners uses cree leds and the blues are at the 450-460nm light spectrum. this should be enough for a 10 gallon. from the research i have seen you need about 3/4 to 1 3w cree led or equivilant per gallon. (so 8-10 3w leds for a 10gallon tank)
watts has little to do with Photosynthetically available radiation or "PAR"
light is light, lumens are lumens and PAR is PAR. if you have enough and the right combination of spectrum you will grow coral.
dont get just white. you need 450-460nm light spectrum
i had intentions of getting the "par38" from nanotuners, and then the LED blues to supplement and use as moon lighting. think Ill be alright with it?