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Drilling a 90 gallon

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  • Drilling a 90 gallon

    Hi guys im about to drill a 90 gallons to use 2 big canisters on a closed loop filtration how should i know which brand i can drill in the bottom like aqueon or marineland ? Thanks for your opinions
    46 Gallon Bowfront, GT & L187b (2)

  • #2
    It's almost guaranteed that your 90G is tempered on the bottom, there should a sticker on bottom glass but with older tanks it may be worn or missing.
    There are ways to check such as looking at the glass through polarized eye glasses etc. just Google it.

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