46gal Bowfront, Marineland 200 bio-wheel filter, dual air pump, 150w heater, natural sand substrate, 2 18" T5 flouresent lights.
Education is the key. Read, read, and read some more before you do anything.
Java Fern's, Anubis's, Hygrophilia Compacta
Keep it simple stupid.
Also have a 8.8gal hexagon tank for glofish. 6 tetra, 4 danio, and 2 albino cory. All glofish in assorted colors. All fake decor with black/neon gravel, 15w heater, single airpump and Aqueon 20 filter.
When you see signs of stress in your fish, you can then take steps to identify the source of that stress and then to resolve it before it becomes a major issue.
If you're looking for a unique way to stock your new tank, give freshwater shrimp a try.
If your fish is suffering, you may want to consider euthanasia as an option to humanely end his pain.