I'm not saying this guy doesn't have an amazing SPS tank and his fish selections are out of this world, but the level of the ich outbreak is really concerning. That Achilles tang is covered, the hippo is covered, the gem tang has cloudy eyes, and many others have some amount of ich. There are some white spots on his glass, so it's hard to tell what is ich, but there is definitive some major ich. I think some people can maintain a low level of ich in their system, but his outbreak is bad enough that I'm sure all of his fish are affected. I'd hate to have to try to catch all of those fish in that tank. I'd also hate to have to need a 700 gal QT tank. Good luck to this guy and his fish.
