I am selling my 56 gallon tank and stand. I've had it for almost 2 1/2 years and it housed one frog. There is a small crack in the hood (from where my frog jumped and hit the tank. The dimensions are:

Tank:30" W x 18" D x 24" H
Stand: 31"W x 19"D x 29.5"H

It is this exact tank and stand: Marineland® 56 Gallon Column Style Aquarium and Stand - Black - Sale - Fish - PetSmart

The buyer would have to pick it up. It's in the Joplin, MO area. $100 or best offer. Please send me a message if you're interested or if you have any questions.