Multicolored double tail betta **you wouldn't keep a dog in a dirty cage all it's life....don't sentence your betta to a dirty "bowl" or "vase". They are tropical fish! They need room to swim and a heater to warm their water!**
Gorgeous Male Betta Splendens - Bettas are tropical fish and prefer water temperatures near 80 degrees. A minimum size 2 gallon tank makes a good home for one male betta because a small heater can be used to increase the water temperature.