How many bubbles per second?

Discussion in 'Carbon Dioxide (CO2)' started by jamesw, 23 Aug 2009.

  1. jamesw

    jamesw Member

    16 Jul 2009
    Hi guys, just got my c02 system and ive set it all up just wanted to ask how many bubbles per second should i have? thanks
  2. Superman

    Superman Member

    29 Jan 2008
    Hi James,

    It all depends on the size of the bubbles and the size of the tank!

    If you've got a drop checker with 4dkH water in there with the pH indicator, then you'll know if there's enough co2 in the water column.

    If would suggest you start of slow, maybe 1bps per second and observe the drop checker a few hours later (as the change isn't instant). You want the drop checker to be green, yellow is too much turn it down and blue means there's not enough in there.

    Just be patient and take your time to get the right co2 in there.
  3. JamesM

    JamesM Member

    17 Apr 2008
    The BIG End, South Wales
    As Clark say, it really does vary and should not be used as a base guide imo. I pump easily more than 9 bps in a 60cm tank, but the light is 4 wpg. If I had 2 wpg I know I could drop my co2 slightly.

    Drop Checkers will give you a better idea of where to start, but these take time to change colour and you will always be 2 hours behind because of this. Use the DC as a base, getting the DC solution as green as possible, then increase the co2 very slowly over time and watch how the fish react.

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