I have a 33 gallon tank and stand that needs a new home. It does have an under gravel filter but will need an air pump tubing and air stones. I do have some extra gravel and can possibly find a heater. It also has a florescent light. It is 18.5 inches from back corner to front, the center panel of glass is 12.25 inches and the smaller side panels are 7.5 inches. There is sliding doors in the stand for storage. Please text or call me as sometimes emails go to my junk folder.