[Possible NSFW] I believe my fish is dying from fin and tail

Do I need to euthanize our betta? Info in comments.

Help!! My endler has been swimming like this in the feeding dish

Tiger Endler Fry being Born (Marked as NSFW Just in Case)

I want to know if this is contagious or just bad dropsy. I may

old endler died, scuds and ramshorns got sushi

do I need to euthanize him. caution listening to the audio in

Is this dropsy? Male endler (my favorite one, too…)

Euthanize or wait?

Do I need to euthanize this fish?

HELP ASAP PLEASE; should I euthanize these fish?

Is my endler ok?