Here There be Dragons
Fish Fanatic
The way I see it, even if given the proper conditions and cared for spectacularly, they won't always be happy. My betta is properly cared for in a 5 gallon heated and filtered tank with weekly water changes and a varied diet, but I don't think he's very happy. He is sick with something and I don't know what it is or what to do. ( I made another thread on that, called "HELP! Strange growths on betta splendens" if you want details on that) We don't have reliable ways to tell if their happy. If they are active and interact with things outside of their tank, and are healthy and colorfull, I would assume they are happy. I think that they should be moved to bigger tanks but I have no control over that. I've given up trying to convince people to put their bettas and gold fish in larger tanks. I'm always countered with nonsense about what bettas really need and like.