My dad has owned Betas since he was a kid, and knows a lot about fish. He has practically a whole library on fish books, and has read almost all of them. He spends his weekends working on the tanks, and spends a lot of time finding the right addition to any of the tanks. So yeah, I could say he knows a lot about Betas.
I hope the Beta is okay as well. I know I would be very upset if any of my beauties passed away. Kelsey is very weak, and not swimming around as much and not eating. I hope he's not getting sick.