well its beautiful still. When I was diving I saw reefs that looked about 10 x worse than that, and this was in 90s cayman islands when water was perfect and corals were perfectly awesome. I literally saw GHA abutting corals (something has to feed a million tang fish) and I saw patches of cyano, and valonia algae the size of ping pong balls. your tank looks cleaned than that, and we dont even have matched grazers here, so this reef looks outstanding to me considering its age.
well done.
one of these days you'll look back and this will be beaten. that may be page 110 but it w arrive one day