The Planted Tank Forum - View Single Post - Turning off CO2 at night
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Old 01-14-2013, 07:25 PM   #5
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Originally Posted by Darkblade48 View Post
You can pick up a solenoid for relatively cheap. That would allow you to control your CO2 flow via a timer.

Ah, thats the part i meant. I have a regulator with a solenoid, but all you are really looking for is a solenoid.
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