46 Gallon Bow Front
Get the larget tank that you can. There will be lots of fish that you'll want.
White Cloud Mountain Minnows
Black Neon Tetras
Congo Tetras (2)
Dwarf Gouramies (3)
Von Rio Tetras
Various types of freshwater plants; Bronze Wendt, Water Sprite, Hair Grass, Vallisneria
I need a bigger tank
I also have a 29 gallon planted tank
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.