Please help! My new betta has developed some form of holes in his head and I am looking to get help figuring out what it may be as I've seen the hole in the head is not common in bettas and he does have a facial deformity! He is still active and swimming and eating but I want to know what it...

I have a little pet store boy, I'm pretty sure he's a dragon scale rosetail but his scaling is quite bad and over the past year that I've had him he's been progressively losing his sight. He can still see a little and comes to the tank when he sees me. I working on other ways to tell him it's...