Been thinking about setting up a 20 long reef tank. Would def. like to do led without spending a fortune. Would one of these work well on a 20 long? Would it cover the whole length of the tank? How high would I want to mount above the water line? And sure I would want to run it dimmed quite a bit right? So many questions! Thank in advance!
http://www.amazon.com/gp/aw/d/B00FRTJA0K/ref=mp_s_a_1_5?qid=1417725238&sr=8-5&pi=AC_SX110_SY165_QL70
http://www.amazon.com/gp/aw/d/B00FRTJA0K/ref=mp_s_a_1_5?qid=1417725238&sr=8-5&pi=AC_SX110_SY165_QL70