Tank Size : 60cm(L) x 40cm(H) x 35 (D)
Lighting : 30 watt
Filtration : Aqwa clear 20
I'm just started myself but read all you can
Zebra Danios (Danio rerio)
Neon tetra (Paracheirodon innesi)
Glow-light Tetra (Hemigrammus erythrozonus)
red phantom tetra (Hyphessobrycon sweglesi)
Rummynose Tetra (Hemigrammus rhodostomus)
Amazon Sword Plant
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.