CHSUB
"Certified Hobby Expert"
Marine Depot are lovely people, whose business is selling equipment, not fish. They'd like to sell you a 96" tank, but their models generally are under that. They'll still happily sell you very good gear for the larger tanks, but many if not most larger tanks are custom-made because people have to fit these big tanks into living rooms along extant walls, and you just don't find a huge selection of those ready-made. What they're trying to tell their customers is get the largest you can find, which as I say several posts above this, is (at 48") a lot nicer than many situations for these fish. You're better off going with the RC recommendation if at all possible and getting a 'long' tank with as much water as possible.
quite the diplomat!!!