Thanks for all the comments. I didn't know people had commented. Hmm, not sure I was notified by email. Anyway to answer some questions...
Yes, the tank is hard to clean. Scraping off coraline is a major pain and we regret installing an acrylic tank. It scratches too easily. We had a mishap with a guest (child) thinking the cleaning magnet was cool and he decided to clean the tank with it after digging the magnet into the sand
We ended up selling the large green cap in the center because it got too big. All you could see was the underside of it. I've decided I'm not a fan of really fast growing sps. We still have the other two caps (red and idaho grape), but I'd like them to go too.
No updated pics yet as my camera broke
We did set up a new 90 gal and took one of the 40 breeders down. The other 40 breeder is in the process of being taken down once the 90 is established with enough pods to support the pipefish.