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Discussion Starter · #1 ·
... but I understand it should be turned off at night when the plants aren't consuming co2... in the DYI version, how do you turn it off?
 

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... but I understand it should be turned off at night when the plants aren't consuming co2... in the DYI version, how do you turn it off?
It is true that plants consume o2 at night instead of CO2, however, I would not recommend "turning off" a DIY reason because it cannot be controlled like a pressurized system. You are likely to introduce dangerous Ph swings by attempting to "turn off" your DIY CO2.

If you feel that your fish could use more Oxygen at night, or if they are gasping at the surface in the morning, simply get an air stone, and run a pump on a timer.
 

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Discussion Starter · #6 ·
Plus I was told with a tank my size (75 gal) the DIY really isn't strong enough. Guess I'll start looking into a Co2 system... and here I thought I was done. Damn! LOL!
 
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