Allo people of the fish community
I have a 3.5 gallon fish tank with nerite snail (and soon betta) and I was interested in putting duckweed in there. Right now the tank has LED lights but it is by a window. And I was planning on also adding a moss ball, java moss (on driftwood), and some type of foreground and background plant (which I have no idea about). I'm also planning on adding black sand.
So to sum it up....
1) Can I grow duckweed in a 3.5 gallon tank?
2) What background and foreground plants should I have?
3) And should I get better lighting?
4) Do I need anything extra if I want sand?