- Joined
- Feb 11, 2017
- Messages
- 4
- Reaction score
- 8
I'd like to see a test for those who don't as yet own a PAR meter. Does the old "watts per gallon" rule hold ANY truth? If so, for what kind of current lighting? If not, is there a better way to accurately guesstimate how much lighting you'll need on a tank based on the size and dimensions of the tank, the contents of the tank (fowler, softies, lps, sps), and type of lighting?