Rainbow Shark with "fleshy mouth"?

[Roma2017]

See images below. We're not sure of the cause, or cure at this point. He's trying to eat, but can't seem to open his mouth. He hides in the caves a lot, but we know this breed will do this...

Not sure if it's mouth rot, or what. Any ideas? Would this be fatal?? No other issues w/other fish in the tank, though we did just lose a female guppy a week ago (no symptoms, just expired).

Thanks!

 

[fluttermoth]

I'm afraid that doesn't look too good

It's hard to tell from your pictures (I'm not blaming you; fish are a nightmare to photograph, we all know that!), but it looks like either a tumour or a dislocated jaw.

I know it's really difficult, but of you could get a better picture, or give us a better description, that might help. Particularly note any redness, white patches or 'fluffiness' to the growth, or any cauliflower appearance, as that might help the members here with a diagnosis.

 

[Roma2017]

His mouth does have redness to it but it is also white. He has started to hide more and it seems to get worse everyday. If it was a tumour or a dislocated jaw is there anything to cure it or will he just die? Sorry for the pictures again but it is hard to focus with water and he keeps moving.

 

[fluttermoth]

I'll be honest; I don't think that's treatable I mean, we could suggest an anti fungal, as it looks like it has fungus as a secondary infection, but that won't help with the underlying issue, whether that is a dislocation or a tumour.

It might be best to euthanise the fish, rather than leave it suffer, but that's a decision only you can make. Let us know if you want some advice on how best to do that.

I'm really sorry I can't suggest anything positive