I just wanted to say thank you for the great information on betttas. I will admit that I ignorantly bought a betta (my seven year old son named him Carl)and a teeny tiny betta kit thinking that was all he needed. I think the bowl was less than 1/2 gallon. After a couple of days, he just looked so sad. I started googling betta fish care and came accross this forum. I realized that 1 - he was in wayyy too small of a tank and 2 - his water was extremely cold. I went out and got Carl everything he needed. In just a few days, Carl has become one happy fish. Even his color is much more vibrant.
Thanks again for all of the great information.