I am posting this for my mother.
I got Finger the Betta for my mom in October 2010.
He never liked large tanks and was happiest in his 1 gallon. He also loved to play in his filter, he would jump into it and sleep in there.
He was very protective of his tank, always flaring at anyone who came near, execpt my mom of course. :)
He died of old age, he was already pretty old when I got him for her.
You will be missed Finger...