For a dorm room you'll want small and simple. I'd say a 10 gal
with 8 - 10 neon tetras and some ghost shrimp. Small bioloads and pretty easy to do a weekly 50%
. If you get one with a stock hood and lighting, low light plants like Anubias and bamboo would work. This set up is pretty much what my son's 10gal is like.
75g Planted Barbs Denison, BlackRuby, Tiger, Albino Tiger, Green Tiger, Cherry, Gold, Checkered, Odessa.
NonBarbs Cardinal, Neon, RummyNose, Bloodfin Tetras, Z. Danios. 1RTS. Amano, Bamboo, Ghost & RCS. 20g Long Shrimp Tank RCS, Tiger, Amano.