A 5-gallon tank is ideal for most betta fish, ... This 15-gallon tank is not too large for your fish and allows for lots of decor options and room to swim comfortably without snagging delicate fins.

The poor conditions of such tiny containers can make it hard for your betta to thrive. Instead, A good aquarium kit, such as ...

An aquarium larger than 2.5 gallons will need to have 10-15% of its water changed every week, with a full cleaning done every two to three weeks. What’s the best betta fish tank to buy? Top ...

Best betta fish tank: ... modern Fluval Flex Freshwater Kit has 15 gallons of betta swimming space and LED lights to highlight your stunner in almost any hue. Best 5-gallon fish tank: ...