I have a 30 inch (~110 gallons) Cubed tank that I have put in a Land Section about 1/2 the way up. I am trying to figure out the most efficient way to get enough light to the plants. The water will be 15" deep (and ~50 gallons of water space), but there will be an additional 15" between the water level and the the light at the top of the tank.
When using the general formula of 3 watts per gallon, in my case, should I use 50 x 3 = 150W since that is the actual amount of water, or should I still use the full 110 x 3 = 330W. I can only figure that I will need less since there is less resitance in the air than in the water, but wanted to make sure first.
Assuming that I will need something ~200W; What and Where is the best place to get a lighting unit that will supply this much wattage to my tank? I do not want (and via my wife will not be allowed to) have any type of lighting that hangs from the ceiling. Therefore I need to stick with the normal 30 inch light strips that can be placed on top of the tank.
Any help would be great! Thanks!