Planted Tank Guru
Join Date: Feb 2010
Location: Newbury Park, CA
If you put up a board attached to studs then you can put the hangers where they need to be. If you put a board on top of the first board you have a shelf which could make that first board make sense.
How heavy are your lights? You can buy dry wall hangers rated for quite a bit of weight.
Or look into making hangers attached to the tanks stand. Not sure the L shape of metal pipe works for heavy lights but a U shape attached on the sides should be sturdy enough. There was a very attractive L shape made of 2x4s posted recently.