my fish has rapid tumor growth and now his skin is breaking open and bleeding where the tumors. The go all the way through from one side to the other. Ive been using the tea tree medicine and it has kept his skin healthy up until the last couple days. I do regular water changes, condition the water, and have a heater in his tank to keep him warm. He still swims some and eats a little, but he has multiple open wounds today. yesterday i thought his skin was maybe breaking, but today its bad. he is declining fast, and he looks miserable. I called a couple vets, and a fish store and no one knows a humane way to euthanize him. I am sad to loose him, but after watching his decline and doing everything I can think of to fix him and keep him comfortable i think he has reached his end.
Any one know the most humane way?