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post #15 of (permalink) Old 01-30-2007, 05:22 PM
Planted Tank Guru
Join Date: Sep 2006
Location: Northern California
Posts: 9,417
Originally Posted by CardBoardBoxProcessor View Post
but what do you do at night when you don't need co2 injection? you can't turn off your filter.
Plug your CO2 into a solenoid. The CO2 will shut off.

You can get acrylic tubes at TAP Plastics.
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