Originally posted by Ty_05_f
Wouldn't MH burn up things. I mean MH are made to be for larger tanks and for the light to be distributed throughout the tank. Correct me if i'm wrong.
Actually, no. 150wts of halide on a 25 gallon tank is releasing the same amount of intensity on a 100 gallon tank (as Dburr already explained). Lightwise, it would be the same. Heatwise, it would be easier to heat a small volume of water than a larger volume of water, therefore it may be hotter in the 25 gallon tank running halides than it would on a 150 gallon tank with halides (provided that room temperature and all appliences are the same/creat the same amount of heat).
Like in a longer bulb its so many watts total, and not how the watts are distributed in one area of your tank.
Just for calification, watts are not distributed throughout the tank. Watts are only how much engery the bulb takes to run. Intensity, as well as Photosynthetically active radiation (PAR), are what the bulb releases.
Take Care,
Graham