I don't mean to derail your thread so I'll try to be brief and give you a little more info.Dave,
I read your proposed tank thread discussion with Lasse. What do you plan on keeping in your system?
The point of this thread, is to show “elegance in simplicity”.
Basically for inhabitants - I am thinking a mixed reef (SPS/LPS and maybe softies), inverts, and trying to keep the fish load down. So think a tang, plus some smaller fish (with an emphasis on utility - sand sifting, nuisance control, etc).
I'm slowly working up a skimmerless sump design where one side of the sump would be a macroalgae refugium with a DSB and RUGF setup for dosing similar to @Lasse ideas. The other side of the sump would be split between a semi-cryptic and full cryptic zone. Hoping that the cryptic zones can fulfill much of the role of a skimmer. I also plan to do a small sand bed with a second RUGF in the display to help keep detritus elevated in the water column for export. I'll be looking for ways to create gas exchange, manage large particulate removal, and a host of other issues I'll need to account for.
For husbandry I think I'll go fishless quarantine and try to feed the best quality fresh/frozen food I can (made harder by living in central Arkansas) - similar to @Paul B ideas on fish health - but do a coral and invert quarantine (that can double as a frag tank later) just to watch out for certain hitchhikers I'd like to avoid. I'll be adding pods, bristle worms, phyto, and anything else that will be beneficial though.
I'm going to start a thread on everything I am thinking about and try to nail down my initial design as I get closer to starting work on this - sadly I have a couple of house projects that need to happen first and the pandemic has really backed up that work. So I'm probably still a year out from really getting started.
Plenty of time to annoy people on the forums with questions!