I'm getting a Gold Severum for my wife, but need to change the #aquarium for it.
The undergravel filters are going, along with the gravel to be replaced by planting media capped with sand.
The Home Depot had some nice pool filter sand; medium-sized grains with rounded edges that is far cheaper than "aquarium sand" which is the same stuff. Both need to be rinsed, and the pool sand ran clear pretty quickly.
Waiting on Amazon to deliver the plant media, then I can re-scape the 50G.
The plan is: bubble wall along the back, tall plants in front of that, with medium to smaller plants along the sides. Plenty of hiding spaces for the fish so they feel safe. Not sure about having a ground cover.
* Vallisneria
* Water Sprite
* Mermaid weed (Proserpinaca Palustris)
* Bacopa
* Rotala
* Anacharis
* Anubias

Trying to think if I've missed anything.
Tank community may include Kuhli Loaches, Zebra Danios, then the Severum. But I still need to check they all have compatible water parameters and will get along.

The Severum's name will be Snape. Severum Snape should be easy to remember, yeah?