aquarium plumbing

  1. Zxandak

    Aquarium Plumbing for Two Overflows Questions

    I have a tank that is about 72 inches long and 18 inches wide with two overflow boxes on the back wall with each having a 1 inch hole and a 3/4 inch hole in the bottom of the glass. I have a sump with two 1 inch drain holes that I will most likely be using. My question is how to setup the...
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