06-19-2010, 07:41 AM
| || |
the closer to 65K you get the better the growth, the browner the corals. the closer to 20K the brighter the colors the slower the growth. this is why some will use a lower K halide and higher K t5s to make up for the color loss.
i wouldnt be able to just give you your PAR rating without using a PAR meter in different areas of your tank. it varies with a list of variables like location in tank, how far lights are away from tank, clarity of water, if there are ripples on the surface ( they can magnify light ) and so forth. im not suggesting you run out and purchase a PAR meter, but that would be how to find out your ratings. you would use it in all areas of your tank. top of your live rock, down in the sand bed, and so on. if you belong to a reef club, ask if someone has one you can borrow. if you dont belong to a reefing club, i suggest searching in your area.
i honestly dont know what 460nm means and the rest. i think 460 is more in the blue spectrum, 5s in the yellow but again im not sure. hope that helps some.