Macroalgae scrubber (refugium) photoperiods

[JimE]

Originally posted by canadawest:
I illuminate my refugium on a reverse lighting period as well for the following reasons:

5. Conservation of energy. Although my lighting is only 2x13W PC lamps, that is 26Wx12 hours a day or 182.5 full days x 26W. A difference of a few $$ on my Hydro bill that I choose to save.

Just my $.02

<font size="2" face="Verdana, Helvetica, sans-serif">.026kw x 12hrs/day x 30days x $.0577/kwh = $0.54/month