125 Gallon, Penguin 330, AquaClear 500, and undergravel filter with 2 power heads.
Have fun and relax while watching the fish.
3 silver dollars, 1 sailfin plecostomus, 2 peppered cory catfish, 1 orange-finned gray botia fish, 2 parrot cichlids, 1 spotted green puffer, 12 orange neon and 8 blue neon tetras, 3 red-eyed tetras, 7 red serpae tetras, 6 fruit tetras, 7 comet fish, about 50 fancy tail guppies, and about 25 mickey mouse platies and about 15 red-whag platies.
Artificial plants and a few seashells.
If you want something done right, you have to do it your damn self!!!
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.