Coralgurls tank build 180 - it's ALIVE

[MarkoD]

Originally Posted by Seriak

Hmm you may be right. I have seen them hung both ways. I don't know if it really matters considering the amount of light that they put out already. Most people have them turned down to 50% so losing a little off the wall shouldn't be a big deal. I may have to do some reaserch on this one. Can anyone else chime in?

Techincally it's 24" X 24" coverage so it shouldn't matter as the light spread is the same either way.

it obviously does matter. look at the fixture logically. its rectangular shaped. theres no way the coverage area is a square