<a href=showthread.php?s=&postid=11058179#post11058179 target=_blank>Originally posted</a> by jpeconsult
Painting the back of glass...has anyone left "spots" not painted to view the underside of the rocks? Example I am thinking is to paint the entire back black and leave a 2x4 inch window to view the under-side of the rock-work. These "windows" would have to be covered with a black paper/film, etc when not viewing. This would only work with tanks that have a sump room/area behine the tank.