I did not discover this as it was posted on another forum. Let me just tell you its not a real tank build unless it includes fires, electric stove, mirrors, a bed, duct tape, a back hoe, and a couple of turkeys. this is true back yard(woods) engineering. I kid but he did put a heck of a lot of effort into something he enjoys and that all that matters. Pleas try to get threw whole thing. http://www.wizardscave.com/aquarium.html