I have 2 male bettas...one is very laid back and drapes himself around the plants of the tank and just hangs out. He is healthy and happy. The other is always cruising the tank and challenging his reflection...again happy and healthy..the little girl I got never stops...she is swimming all the time. She is a walmart rescue from a cup of very dirty water and is the healthiest of all . I wonder if the more we baby them the more we take away their resistance. That is not to say they should be neglected...I baby all of my fish but it seems the more I baby them the more problems I have. ( Angels with ich right now) Anyhow my ?? is...are females usually more active than the males or is it just individual personalities? She also isn't as people oriented as the males but that could be that I havn't had her long yet .