You can catch a glimpse of the Magic Castle's new Houdini aquarium -- which I first told you about here -- in this promo for the new season of Tanked. The tank shows up at 00:15.
The new season of Tanked began on August 11. The Houdini episode will air Sept. 15 at 9:00 p.m., and again at 11:00 p.m., on Animal Planet.
UPDATE: Houdini aquarium revealed on Tanked.