Love the site , I thought I would give this a try yesterday and build my first scrubber !
Well I think I figured out based off the new sizing guidelines that I am not feeding more than 2 cubes a day ( I believe I also saw a post where Floyd had mentioned most people actually do not feed more than 2 cubes per day ) , so I decided to build a 6 by 8 inch waterfall scrubber that works off my overflow , I have a dual overflow 180 gallon tank so I just plumbed the scrubber off one of the overflows instead of using a pump.
I read that for each cube you need 12 watts of actual light and if you double the wattage you can cut the time down,
I am thinking that a 1 sided 6 by 8 ( 48 Square inches ) needs 24 watts of light 18 hrs a day if I am understanding the new guidelines.
I did find a 40 watt ( Actual 40 watts ) CFL . It is 8 watts less than double to reduce the time , but I am thinking I can reduce the time its on somewhat, does anyone have any suggestions.
Also I will try and get some pics up once I get back home .