The Planted Tank Forum - View Single Post - "Siesta" a.k.a 2 photoperiods
View Single Post
post #19 of (permalink) Old 01-17-2013, 12:02 AM
Planted Tank Guru
Seattle_Aquarist's Avatar
Join Date: Jun 2008
Location: Seattle, WA
Posts: 3,405
Originally Posted by thesawguy View Post
I can understand the lure of a split cycle for viewing purposes for a working individual but one thing to consider is that turning fluorescent lights on and off twice as often will shorten their useful life, wearing them out faster.
+1 on thesawguy's comment; split periods do shorten the life expectancy of fluorescent tubes. Because I have found the output of my bulbs typically drops by 25% or more over a 12 month period (verified with PAR meter readings) I change my bulbs annually and seldom have a bulb fail prior to replacement.

75 Gallon, 2X55W AH Supply CF 8800K, 1XMarineland Doublebright, 2X Marineland 350 Magnum; 45 Gallon Tall, 96Watt AH Supply CF 6700K; 30 Gallon Long; 2X36W AH Supply CF 6700K; 20 Gallon, 1X26W AH Supply LED kit; all with Press. CO2; (Calcined) Montmorillonite Clay
Greater Seattle Aquarium Society (GSAS)

Seattle_Aquarist is online now  
For the best viewing experience please update your browser to Google Chrome