Howdy. I'm new to posting, lurking for a while.
I've been contemplating an office tank for a while - similar to yours. My plan was to emulate my low-maint small tanks at home, with either bettas or RCS (I've got a mix of them, but separate tanks of course).
I use fluorite black, but was considering bare bottom for the office. I use lots of wood, but I like your rocks. I like the rear plants you have. My plants:
Java fern. I bought two, now have roughly 20 plants in six tanks.
Anubias nana petite. Super easy, pretty, grows slow.
Crypt parva. Really fun to propagate - nearly carpet, slightly faster than java fern on growth, for me. Stays low, and has nice looking leaves - also very low maintenance.
Anacharis. Grows tall, can drape along the top surface, or be trimmed/replanted. Bulletproof.
Micro swords. Not exactly which ones I got, but they stay low, cover a good area, and take only a small trim/pluck occasionally.
Riccia fluitans. A bit of a weed, I've likely thrown more away than I have. But it absolutely beats duckweed for a floating cover (which is near impossible to remove). My favorite clump is growing emersed on top of driftwood. It looks better than the submerged version.
I use Fluval pcl-13 fluorescents, and led desk lights. The Fluval lights do awesome. They don't have that purpley look that LED lights like the Finnex have - my preference.
Filters for me range from DIY canisters to small HOB, and air lift sponges. I do not run any ferts, and no CO2. Water change 1/week, like most folks. I use API dechloro and Stress-zyme.
Looking forward to seeing some more of your results, perhaps you'll convince me to go ahead with it.