I was trying to find information about Macro algae light requirements and came across the following really good general artical on Macro Algae...
http://reefkeeping.com/issues/2007-01/sl/index.php
In it they quote that you need anywhere from 60 - 150 PPFD depending on the algae.
Anyone have any clue how to convert those units to number of PC bulbs per gallon?
Might be a lost cause but I thought I would give it a try.
Thanks,
Jon.