I inherited this classroom fish and don’t know anything about

What’s wrong with my female?! Missing skin on top fin exposing

i dont really know what to do as he isn’t eating he’s alive

Please help

Please help! Does my betta look bloated?

Please help me….

Please help

Does my betta have constipation, swim bladder, or dropsy? I’ve

please help! is my betta dying??

PLEASE HELP ME

Any info please,Woke up to this? I flip the lid for their morning

Please help!