chubbylizard
Some of the actual plant substrate will have added minerals and iron.
It makes things a lot easier but they can be expensive.
I use pool filter sand for substrate and make my own diy root tabs with Osmocote plus.
I buy powdered iron and potassium supplements made for agriculture and mix them myself.
For magnesium I use Epsom salts.
It’s a lot cheaper then buying the supplements marketed to aquarium keepers.
Other then that all you need is good lighting and if you want to really boost everything Co2.