The Planted Tank Forum - View Single Post - BBA/CO2/lighting
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post #6 of (permalink) Old 08-30-2012, 05:01 AM Thread Starter
Planted Tank Enthusiast
Join Date: Apr 2010
Location: Hoboken, NJ
Posts: 741
it has a solenoid so it goes on about 1/2 hr before the lights and turns off 1/2 before the lights do.
mcaquatic is offline  
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