Harlequin rasboras jaw stuck open (?) Help needed

[ilikecats]

i put him in a jar seperately to see, and it's jaw looks gone, i just got it yesterday
What should i do?

I've already checked the water quality and everything's normal

 

[MaloK]

Unfortunately, there's no effective therapy If the fish cannot feed itself it will eventually starves to death.

Fish jaws are much too delicate to be “popped” back into position, though it is possible to do so with larger fish.

If he is able to eat, you might end with a perfectly happy crippled fish. If he is not able to eat, I wouldn't let him starve and euthanize him the most humane way.

 

[ilikecats]

Unfortunately, there's no effective therapy If the fish cannot feed itself it will eventually starves to death.

Fish jaws are much too delicate to be “popped” back into position, though it is possible to do so with larger fish.

If he is able to eat, you might end with a perfectly happy crippled fish. If he is not able to eat, I wouldn't let him starve and euthanize him the most humane way.

Sadly it died this morning & another one too, they both had cotton like stuff surrounding the lips

thinking it might be columnaris since it also affected some other fish any suggestions? I've changed 50% of the water

 

[MaloK]

This Article can be of some help.

Columnaris - Wikipedia