Swim Bladder Disease?

[MauiAnglerReef]

So I just woke up to my feeder chromis at the bottom of the tank. It was freaking out and not swimming correctly. Should I just flush it to prevent it from spreading to the other feeder fish?

 

[Sharkbait19]

Could you attach the videos as YouTube links? The embedded videos don’t play on mobile.
How new is the fish? How was it acclimated?
Do you have multiple chromis in the tank? They have tendency to kill each other off depending on tank and shoal size. The bullied individuals will often act weird (most often hiding in the corner).
Definitely don’t flush it - there’s better ways to euthanize if need be. Also, for a feeder, consider mollies. They are cheaper, easy to breed, and are far less likely to transfer diseases.

 

[MauiAnglerReef]

I know about mollies and guppies, they used to be my go-to feeder but recently, my angler has rejected them, so marine fish are my only current option. It was the only chromis in the tank, and was in it for about 2-3 weeks.

 

[MauiAnglerReef]

 

[MauiAnglerReef]

It ended up dying so here’s some pictures

 

[Sharkbait19]

Nothing looks overtly wrong with the fish, but post mortem is always tough. Maybe a little pinched in the abdomen - had it been eating?
I wouldn’t be super worried unless any other fish start acting off.