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You actually have a 20 gallon tank. There are 231 cubic inches in a gallon. So if you take your length times your with you get: 24x12 = 288in square. Then multiply that times the 16 inches of height and you get 4,608 inches cubed. Divide that number by the 231 cubic inches per gallon and you get: 4608 (inches cubed)/ 231(cubic inches per gallon)=19.94 Gallons or a 20 gallon tank.

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16y ago

What else can I help you with?