This is my favorite aquarium. It's about 12 years old, started as a freshwater tank, then became saltwater, and is now back to freshwater. It has moved to four different houses with me and is currently in my living room, right beside my computer. Most of the fish and plants are from Asia, but there are also a few from Central and South America. The present setup requires very little maintenance. It basically involves removing loose leaves, a 20% water change every week and pruning the plants every month. The hardy plants used here grow slowly but are very healthy, proving that you don't need any fancy or expensive equipment to have a nice planted tank.
For the first year and a half or so, the tank had a UGF for filtration and the plants were growing fine without any kind of special attention. But after that they began to show signs of weakening, so I started adding 2 ml of SeaChem Flourish after weekly water changes. I also started adding 10 ml of a homemade Potassium Carbonate solution (10% K2CO3) once or twice a week. It helps keep the pH slightly alkaline (ideal for most of the fishes here), raises carbonate hardness (KH), and the potassium is good for the plants.
A few months later I started making some more significant changes to the setup. I began experimenting with my first homemade CO2 yeast reactor, and after a while deactivated the UGF, replacing the previous AquaClear 200 by the larger 300. I also began making a few changes to the fish population until settling with the current list above.