[Kr7400]

Hi
My Dalmatian Mollie has something hanging out of where she normally poos, it’s kind of looks fluffy. The skin has also gone all bubbly on one side. She is still swimming around and eating but sometimes looks struggling to swim properly. Does anyone know what this could be and if there is anything I can do to help her. Thanks in advance

 

[FishHoarder14]

looks to me like a fungal infection but don't take my word for it. Have any other fish displayed this?