Join Date: May 2013
Location: Massachusetts, U.S.
I would say try to get something a bit bigger, especially since with two fish in a small tank you'll have to do big water changes. And you need room for a heater as well.
You should always buy the biggest tank you can afford that you have room for, even a 3 gallon divided would be better if you also had a heater in there. A one gallon is kinda small for two Bettas so ammonia will build up quickly and there's no much room for anything else but the fish. I would definitely upgrade to the biggest sized tank that's reasonable for your situation.
2 Boys: Benedict (VT), Ramses (King PK) 3 Girls: Gylfie, Sonata, Alice (all VT) 5 Cory Catfish: Sherlock, Watson, Mycroft, Howard, Gimpy