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How much water does my fish tank hold?

My brother in-law gave me a fish tank. He had money so he didn’t pay attention to how much water it hold he just bought it because it was big.

L:6ft exactly
H:20.5 inches
W: 18in

i don’t know if the glass has much to do with it, but the glass it’s self is 1/2 an inch thick.

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7 Responses to “How much water does my fish tank hold?”

  1. natalie says:

    erm…fill it with water…

  2. Digitlanalog says:

    being 6 feet long probably makes it close to a 100 gallon tank. Make sure before you fill it that it has the braces across the top. If a tank that big doesn’t have those, the weight of the water will push the glass apart and you’ll end up with 100 gallons of water on your floor..

    Remember Each gallon of water weighs almost 8 and a half pounds.

    Hope this helps and grats on the rad fish tank!

  3. Drew says:

    ~ 115 gallons

    (72 x 20.5 x 18)/231 = 115.01 Gallons

  4. Hunter says:

    It depends on what size tank you have. I have a 54′ and it holds about 62 gallons. You can look on the box for the measurements or the owner’s manual.

  5. Rainman says:

    115 gallons.

    72″ x 20.5″ x 18″ = 26,568 cubic inches

    231 cubic inches = 1 gallon

    26,568/231 = 115.012 gallons

  6. TTTTTTTTT says:

    can someone tell me how much my tank will hold mine is 10′ by 20′ and 12′ down?? anyone know please let me know.

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