55 gal:Named after the ship Master Chief drifted through space in for over 4 years while in cryosleep in a hyperbolic chamber(name of quarantine tank)
This tank currently houses; 1 Royal Turquoise Discus, 1 Koi Angel, 1 Elephant Nose, 1 Black Ghost Knifefish, 3 Glass Cats, 4 Large Harlequin Rasbora,