Think I agree with you but am loath to do it just yet.
She is still going to the loo, eating and doing what angels usually do.
No flukes or fin rot etc actually looks perfect.
Still happy with her partner too.
Was thinking maybe egg bound, but clutching at straws now.
Must admit the fish have grown and are now pretty big so there are maybe too many in the tank, but water quality is fine.
Fish is not bloated.
Feed on frozen and pro dried stuff.
Has been swimming upside down for weeks now and really doesn't look ill just silly!
We've had these fish for years...
Can you help? My angel is swimming upside down most of the time. Female, has laid eggs in the past. Feeds well, seems fine with no visible signs of illness.