Hello everyone, I'm new to this site and am seeking advice for my sick betta. I have had him for a year, he was won at the fair so I'm sure he didn't come from the best place. He has been healthy and happy for this past year but then over this past week I notice this white fuzz near his stomach. It's gotten worse and now seems like a hole is forming and his poo does not come off easily. It's attached to him for hours and this never used to happen. I've looked up the vets near me and I've found none that care for fish. I fear that he is in pain and don't know how to remedy this. I appreciate any and all advice! I've attached two pictures of him.