nmcturner Fish Fanatic Joined Jul 29, 2007 Messages 107 Reaction score 0 Location Metro Detroit Aug 1, 2007 #1 I have a lighting WPG question. When calculating this do you use the amount of water that the aquariumm can hold or the amount of water that is actually in the aquarium after factoring in decorations etc...?
I have a lighting WPG question. When calculating this do you use the amount of water that the aquariumm can hold or the amount of water that is actually in the aquarium after factoring in decorations etc...?
George Farmer ad aqua Joined Jul 6, 2003 Messages 5,015 Reaction score 0 Location Stamford, Lincs, UK Aug 1, 2007 #2 Volume it can hold before any displacement.