What’s wrong with my fish

[Lauralou]

Is she pregnant or bloat? Not sure and what to do if she needs to lay eggs etc, please advise she is the only one in the tank like this

 

[DoubleDutch]

I'd say a tumor. I'd euthanise in this stage.

 

[Lauralou]

I'd say a tumor. I'd euthanise in this stage.

Many thanks, poor thing