
There are two camps when it comes to plants...
Aquariums with fish and plants.
Planted Aquariums with fish. I am in this camp. The hobby for me involves keeping a healthy, lush, aquatic garden of specimen plantings AND a collection of specimen tropical fish and critters. It's a zen thing
The three requirements for success with plants are
1. Light in sufficient intensity. (don't let people tell you it has to be their super deluxe plant growing bulb on sale today for a zillion dollars, nonsense!)
2. A reliable and consistent source of carbon. (lots of discussion to be had here

)
3. Supplying the plants with a consistent program of the nutrients (food) they need. Nitrogen, Potassium, Phosphate etc.
It is not rocket science, but it requires some new learning, care and attention to routine, monitoring, and maintenance.
The first decision to make is what your vision is...a few plants for accent or a planted tank.
Jay