This is my no-tech, low-ferts, low light tank. It is my easiest aquarium to care for, and would be a good setup for a novice to planted tanks. It's been running for years, though it got a bit of an update recently with 2 tissue cultures of undulata red that are starting to just fill in. Tank gets root tabs every once in a while plus about once a month I do a dose of Flourish and Leaf Zone.
Cryptocoryne balansae in back, probably parva (unlabeled at shop, been in there nearly 2 years) tucked front-center between the wood and in front of wood on left, and the recently planted undulata scattered all around. I've been really lucky with the undulata, which never melted at all and is actively pushing out quite a bit of new growth already. There's also a bit of narrow java fern and some type of myrio in the back left corner, and some small java ferns on rock in front waiting to move to my son's shrimp tank.
(Please ignore the hair algae. I stirred up a load of substrate while adding the undulata and splitting the parva clumps, so I'm experiencing a bit of an algae boom as a result, though it's beginning to subside.)