Diegoc

I don’t think it is a fungal infection because I treated his fin rot with salt and the infection wouldn’t survive through that

Hello, i think my betta has a tumor. It is a bump but at first it looked like a green scale. I thought nothing of it then it started growing more. He had fin rot and I got rid of it. His fins are growing back now but the tumor made his dorsal fin tear. I need help on identifying if it is a real tumor or not and what I can do to fix it. Thank you for your time and help. Photos in replies.