do these take over the bottom space or do you have to get a bunch of individual plants that grow over time??? do they require any ferts, CO2 or high WPG??
They do not require ferts or co2 but need at least medium light. Mine are in high light, ferts, and pressurized co2 though. They are a type of stem plant. If you keep breaking the stems and replanting them they will cover the space.
idk. are they a dificult plant to grow? bcuz ive some managed to kill most of my amazon swords....i have a black thumb. the only thing ive had success with is java moss and algae.