Dunno. Mind if i post an uncharacteristic analysis?
The first two tank pics...looks like they were just set up. Look at the sand next to the glass. I'm not buying that they're successful tanks. Do you see a single worm trail in the sand? Coraline on the silicone? Macro algae? What about the tank with the Dendros up high, near the macroalgae. Dendros in a 'sanitary' tank, LOL!
Look at the second tank. Think they scraped all the diatoms/coraline, that _better_ be growing there, without disturbing the SPS? Not!
Is this a Marc Weiss ad?
I think the wool has been pulled over all of your eyes. Sure, the top of the sand can look like that, as Ironreef pointed out, but not the sand next to the glass. (Unless you vacum and scrape there, LOL!)
Reef husbandry is more than spending a few bucks, slapping some critters in a tank, and patting yourself on the back for your 24 hours of 'success'. And a tank that sterile would worry me. I don't want a tank with no diatoms or coraline.
You should have pity and understanding for the poor souls who use the 'tech' approach. Sure, pumps, lights, and a skimmer are great, but not a launch pad of dosing pumps. For what? To measure coral-vite? No algae, but they're dosing Kent Iron supplements! LOL!
Rather than praising their husbandry, I'd expect a few folks to be outraged. I wonder what happens to the SPS during the new tank phases. SPS and cyano!
It's nice we don't have the tanks owner as a board member. I won't be flaming anybody by suggesting that they might be in charge of the japanese whaling industry, and are claiming that this is for 'research purposes' too! LOL!
Think I'm just jaded? I think I want to play poker with you believers!
But...I want a few of those SPS frags!