in-line

  1. Carbondioxide

    Are you in, or our?

    What is your preferred method of diffusing CO2 in your aquarium?
  2. iDigit

    In-line heating

    Hey all, I am busy planning a new set up. I want to make an in-line CO2 reactor system. However, incorporated into this reactor, I want to place a heater for the tank so as to avoid having the unsightly heater in the tank. For a 200 litre tank I think a 200w heater should suffice. None...
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