I have had a male crowntail betta for around a year now and he's always been plenty active and healthy. He is in a three gallon, filtered and aerated tank with nice open-swimming space and darker hiding areas and seems happy.
Here is my question: as of a few weeks ago, he quite suddenly started floating at the top, usually on his side but occasionally sort-of upright if he props against something. Sometimes he puts out the effort to swim to a different part of his tank, but rarely down to his cave or plants. His bladder isn't inflated (fed him a shelled pea just to be sure), nor is any other part of him looking weird - except that it's almost like he has a *literal bend
* in his body (like a shallow "S" when looking from the top-down). I can't get a picture of him that shows the bend since he's almost always on his side, but I'll try.
In the meantime, any ideas? He's eating (granted, only every couple of days) and is otherwise
normal-looking and acting...I don't want him to be suffering if there's anything I can do to help.
Thanks for any and all suggestions!