Is there a small breed of angelfish? If so, how big does it get? The reason I'm asking is that I want 1 for a hex tank that I have that's like 5 gallons.
No. An angel fish should have a 30 gal minumum, that is atleast 30 inches long by 18 inches high. For the 5 gal, maybe you could get a dwarf puffer fish or betta. Theres not many choices of fish to put in a 5 gal. No cichlids could live in a tank that small.