Originally Posted by danbstrong
Youll be fine moving them up a lil bit so light will cover more my tank is 30" deep and my leds are 8" above tank and coral on bottom is still getting plenty of loght
That really depend on the brand of LED
and the type of lenses your LED
is using. Not all LEDs are the same especially comes to performance and that is why the cost are different. ( of course, there is also the gimmick factor for some of the LEDs)
Oh after I double check the pictures, the light is already sitting on a canopy, which means it is already at about 6-10 inches I would assume.
Just to let you compare the coverage of having one to have ..well 3 ( I suggest him to only use 2 but he want to match the brightness of his 2x250W MH
I think is hanging about 10-14 inches, you can tell the differences on the sides. And these LEDs are using 90 degree lenses. His tank is 48x24x18