I think that these tanks perfectly illustrate what I am talking about. Those are beautiful tanks, but they appear to have a ceiling. I see stags, montis, birdsnest, poci and stylophora with a bunch of softies... and maybe a clam? Is there a clam? I do not see any millepora, shortcakes, lokani, echinata, other deepwaters - while these might be limited to availability or personal preference, this is pretty indicative to what you find with tanks like this... thriving species continue to thrive and the others wither away with their objection only noticed by a few. Perhaps the photos are just not detailed enough to see these items and I am way off base. Just like the super-high N and P tanks (which kinda follow the same pattern), there are too many of these to ignore if you know what you are looking at.
If somebody wants to argue that most people will never get to this level so this supposed ceiling does not really apply to the masses, then I am all ears. However, I think that it is important to point out the details for the few who do want to go beyond.
What salt do you all use? I have never had an issue with TM Pro Reef (isn't that available there?) or Instant Ocean... rock solid since 1992.