Canister filter ?

Discussion in 'General Freshwater Aquarium Keeping' started by fishlady, Dec 11, 2017.

  1. fishlady

    fishlady Well-Known Member

    I will have a drilled tank on the top rack and a non drilled tank on the bottom. Can I have the canister filter take from the bottom tank and the outflow to the top tank or do the intake and output lines have to be the same length?

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