All of my bettas have their own little personalities, too.

Daemerung likes to play dead... when he sleeps, he'll lay leaned over on the bottom of his tank... he's scared me by doing that more than a few times. When I'm at my computer, he comes over to the plant closest to me and lays on it and watches me. When he's feeling ornery, he goes over to the other side and bugs his neighbor. He'll sit at the side until Angel sees him, then duck behind a plant when Angel starts flaring.
Angel is very agressive. He flares at himself, his neighbors, his plants... but he's really a big scaredy cat. If I put my finger up by the tank, it scares him and he darts into his plants. He sometimes gets scared of his thermometer, and I've even seen him get scared of his plants a couple times! He's really a riot to watch. Angel was my Wal-Mart rescue... he had fin rot so bad that one of his ventrals was bent over up next to his body... the rest of his fins healed nicely, but that one ventral never healed and eventualy fell off due to lack of circulation. So, he has a stubby fin.
Sakana is my old man, but he's just such a cutie! He never flares at anything except his own reflection, but he loves to tease his neighbors. He'll dance at them until they get all reiled up and start flaring at him, then he'll just turn and casually swim away. He dances for me every time I come up to the tank. He likes to lay around in his cave, and it's so cute to see him swim out of it to greet me whenever I come up to him.
Diamond is also very agressive. He just cracks me up. He doesn't flare very often, but he just patrols his part of the tank, and you know he's on the hunt. Whenever he spots one of his neighbors, he swims up to the divider and just starts dancing at them, sometimes with small little flares, like he's warning them to stay away. He attacks his food, even if it's just the pellets, and he nips my hand any time I have to put it in there for something. I have a cave and a couple plants in there for him, but he only ever uses one of the plants. That's the one he sleeps on when he's tired of patroling.
Koenig is my most laid back fish... he likes a bare tank, too. He used to never nest for me, and would just sit around... I couldn't figure out why. I tried all different things for him. Now all I have in there is two plants and a cave, with lots of open space, and he loves it. He's been contstanly nesting for me ever since. He comes up to the front of the tank to greet me whenever I'm there, but other than that, he just swims around and lives the lazy betta life.
