I have 4 tanks,
One 300 liter discus tank (75gal)
One Brine shrimp hatchery
A 280 Liter (70gal) catfish tank
And a 90 liter Discus breeding tank (18gal)
New ADA 2 footer!
The more effort you put into your tank...the more you enjoy it.
5xDiscus Various L number plecos, tetras, bristlenose, corys etc
Anubias, Glossostigma , amazon swords, java fern, riccia, java moss, tiger lotus etc
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.