You simply divide the amounts of gallon by the number of watts. Although tank depth is a little more important than general size especially concerning PC's. Your PC's should have how many watts they are printed on them somewhere.
Watts per gallon is not a good measurement. It is like determining how good a driver you are by the size of your right foot (Acceleration/braking foot). Tell us what kind of lamps you have, the dimensions of your tank, and what you want to keep and we will give you suggestions on lighting.
<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR>Originally posted by esmithiii:
<STRONG>It is like determining how good a driver you are by the size of your right foot (Acceleration/braking foot</STRONG><HR></BLOCKQUOTE>
LOL.... Well its more like the size of the left brain.
(haven't seen much of that happy face in today's posts!)