Watts Per Gallon vs. Watts Per Depth

bbyatv · 12/24/2007, 12:16 AM

I am upgrading from a 30 to a 90g. If I currently have 156 watts of T5 lighting over my tank, that is about 5.2 watts per gallon and about 8.67 watts per inch of water depth. With my new 90 I am considering going with 404 watts of HQI and T5 mix. This is only 4.49 watts per gallon, but 16.83 watts per inch of depth. I think I will be better off as far as lighting goes in the new 90. Even though the watts per gallon has gone down. I am feeling that the watts per depth of water is more important.

Bruce

12/24/2007, 12:16 AM	#1
bbyatv Registered Member Join Date: Jun 2006 Location: Centreville, Virginia Posts: 104	Watts Per Gallon vs. Watts Per Depth I am upgrading from a 30 to a 90g. If I currently have 156 watts of T5 lighting over my tank, that is about 5.2 watts per gallon and about 8.67 watts per inch of water depth. With my new 90 I am considering going with 404 watts of HQI and T5 mix. This is only 4.49 watts per gallon, but 16.83 watts per inch of depth. I think I will be better off as far as lighting goes in the new 90. Even though the watts per gallon has gone down. I am feeling that the watts per depth of water is more important. Bruce