My 15 gallon high energy aquarium. 24"12"12" Finnex Ray 2, Green Leaf Aquariums Primo C02 gas injection system, Fluval 205 canister with foam and bio media only. EI fertilizer system.
Read,try,read more, try more. Study lots of photos and videos of hardscape layout. Learn about wood,stone, and various substrate types. Be prepared for setbacks and spending some money.
Rotala Runtundafolia, Anubias (various species) Dwarf hair grass sp?, Alternanthera Reineckii, Willow moss, Java moss, Amazon Sword, cryptocoryne undulata red, Staurogyne repens
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.