MAKE SURE to treat the water and clean the water frequently (once a week or so). ANY sized tank is ideal for a betta; contrary to popular belief they DO NOT live in only 4oz of water year-round, ONLY during the dry seasons. Bettas THRIVE and are usually more active in larger tanks. ALSO they can tank with other non-aggressive and non-fin nipping fish.

Bettas are carnivores also, so any betta-specific food or even Brine Shrimp, Blood Worms, Water Fleas and Tubifex Worms to name a few.