This past monday I got myself two new betta's. One of which is DJ. I chose him because of his beauty and because of his spunk, he was a crazy little buggar in his small cup and was going crazy flaring at every other betta around him.. Since I have had him home he just seems so depressed! He is in a nice 2.5gal filtered/heated tank. He just swims around looking mopey. Goose is right beside him in an identical 2.5 filtered heated tank and he is crazy! Swimming like a mad man all the time. Is it that He isnt happy in even a 2.5 and needs bigger? Or could there be something different?