I have a question. When you get plants from a seller and they have the metal strip on them, is it safe to keep them in the tank to weigh the plant down?
And just because I don't know, what metals are safe to put in an aquarium and what isn't?
I know @ PetCo, they sell bunches of floating plants with lead weights wrapped around the stems. Good idea to remove & discard the weight before you put the plants in your tank.
Wash your hands after handling the l-weight.
As a general rule don't place any metal inside that can rust. It contaminates the water and slowly poisons it's inhabitants.