He actually looks happy, Wit! Karma to you!
This reminds me of what I did at my local Petco 4 months or so ago.
They had a Purple Tang which they had there for $130. No one wanted to pay that much for a fish. So, he sat there. They lowered the price to $100. No one bit. He sat there some more. This went on for 2 months I was popping in and out to get fish food, chemicals, etc. I would go over and look at him and the other fish each time just to see what they had, how they were doing, etc. This time, there was an "under observation" sign on his tank and he had developed Lateral Line Disease.
I felt so bad for the fish! They dropped the price to $59 and I could tell the Tang was downright miserable being at Petco. So, I decided I would inquire about the fish. The Manager said he'd been trying to sell him for months but no one would buy him. I told him I was interested and he said that when I come back to pay for him (which was going to be in a week), he was gonna make me a deal for showing compassion for the fish. I came back in a week and he sold the fish to me for $30.
I took the tang home and put him in my 55. He hid for a bit, but seemed ok. Over the next few months, he ate like a horse and made a home for himself! His lateral line disease is still there but has been gradually disappearing as new scales have grown in. He still has it a little, but it seems like he is still progressing toward kicking the disorder!!
When I first got him, he looked like he was wearing a scary native mask like a headhunter, now he just has a few spots on his face and around his eyes. Down his sides, the affected area was about 1/2 inch wide on each. On one side, it's reduced to an eighth or so and it's just a single thin line down the other.
Here's what he looks like today. He's fat, sassy, eats like a pig, and NO ONE is allowed in his cave lair!
Note: If you look closely at the line, you can see dark coloration surrounding it which are his new scales. That is how bad his LLD was before!
Sorry about the picture quality. He's LIGHTNING FAST and hard to get a good shot of!