Can anyone help with diagnosing? His body seems to be rotting

Help! What’s wrong with my fish?

!!!Warning : sick fish video!!!please help.the details in the

please please please help me figure out what’s going on with

Fish doctor needed!

Goldfish of ~4 years is suddenly sick/dying, please help!

Please help!!! Sick fish?

Platy fish have gotten disease and I’m struggling on what to

Help! sick fish

My fish are dying please help

Trigger: sick fish. Anyone have any ideas how I can help this

Fish helping a sick schoolmate swim?