Solenoid and stable CO2? - The Planted Tank Forum
 
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post #1 of 3 (permalink) Old 05-22-2014, 10:08 AM Thread Starter
Planted Tank Obsessed
 
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Question Solenoid and stable CO2?

Hi,

When my solenoid block the CO2 at night, after some hours the drop checker become blue.
So it's mean that my co2 level not stable? Or this is normal situation and won't promote algae?

My lighting schedule 2pm to 9pm.
My co2 schedule from 7am to 9pm.
When the light on, the drop checker is green.

Thanks for advice.
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post #2 of 3 (permalink) Old 05-22-2014, 08:05 PM
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Stable CO2 means having the same ppm of CO2 during the lights-on time every day, day after day, after day. What the CO2 level is with the lights off is irrelevant. It should take less than an hour for the CO2 level to build up and stabilize after the CO2 solenoid is turned on, so you don't need to start the CO2 that early. You could start it at noon and know you have the CO2 stabilized when the lights come on 2 hours later.

Hoppy
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post #3 of 3 (permalink) Old 05-23-2014, 03:51 AM Thread Starter
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Thanks, I set my solenoid to run 2h before light on and 1h before light out.

Last edited by EvilFish; 05-23-2014 at 03:52 AM. Reason: upd
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