mrpope
Aquarium Advice Activist
I have a tank where a 150W MH sits on legs 7" above the tank. I am concerned about having an open top, so I use a glass canopy to cover the tank. The temp stays about the same so there are no prbs here, but I was wondering if anybody knows if the glass cuts out a lot of light or not. I cant tell the difference with it on or off, but maybe its something the human eye cant see
thanks, Brian
thanks, Brian