Your guess is correct - no.
Tangs are swimmers - ideally a 6 foot long (or longer) tank.
Many folks will keep a tang in a 120 (48 x 24 x 24), but 6 foot is better.
I assume you are only talking about housing 1 tang - not multiple tangs?
Yes just one. I saw a few members on other forums with similar tanks that kept tangs. their justification was minimal rockwork and later upgrading or giving away the fish when it gets to big. I would rather make the better rational decision. Thanks for the input!