I got a boy betta and a girl betta, and they're in one of those dual betta hexes with a divider in the middle. I'm a little worried about the girl betta, because she seems to sit at the bottom sometimes with her dorsal fin and tail clamped. If i walk into the room or if I start moving around in my room, she will swim around. And she has no other symptoms- no sores, her colors are wonderful, she eats like a little pig, and she becomes excited when I walk into the room. But every few minutes she'll swim to the bottom with her fins clamped. I'm feeding her 2 pellets twice a day and the boy three pellets twice a day (he's quite a bit bigger than she is) which is suggested. I'm not sure if this sitting at the bottom with her dorsal and tail clamped is just a personality thing or if she's sick. Sometimes the boy will do it too- but rarely so I don't think it's a problem at all with him. Does anyone know anything about this? Thanks.