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Thread: Co2 logic

  1. #1
    Join Date

    Default Co2 logic


    I am a complete noob so my apologies if I am doing this all wrong.

    I have a fresh water planted tank on a GHL profiles 4 controller. I can set my Co2 solenoid to come on if my PH is above 7, however I would only like this logic to apply while my lights are on. Is there away to make this logic only happen between two given times?

    Thanks in advance

  2. #2
    Join Date


    Hi there,

    Go to the PL settings page, choose an unused gate and set the function to AND. Select the illumination channel and pH control downward option. Assign this PL function to the outlet of choice.
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