Maryrox - I agree, out of all the fish I have kept so far in my hobby (and I am 36 years old) betta fish do have the most personality and character. When I called him dumb it was not in anger but more of a "shake my head in wonder" kind of way. I do like your analogy of a new school though. I currently have 13 male bettas that I lovingly care for and this is my first tail biter. I appreciate the different perspective, it has never happened to me before and I was not sure if I should move him to a smaller tank or not. I will give him more time as was suggested. Thanks!
Frogipoi - I really don't think my fish knows if I am rude or not - it IS a fish and they don't understand words. They do know that I provide them with good clean warm water and a variety of foods, so they are happy and I am happy in my hobby knowing they are thriving in my care. I do understand you are 10, I even have a 10 year old child myself, and I commend you for caring so much about your pet and hobby. I am also very impressed with your typing skills!! But please DO NOT berate me.