| | Re: Syngonium to help polish water...
Funny thing about Syngonium is that its a vine..yet grows compact like a groundcover. I've seen youtube vids of it by a tropical stream and it grew along the banks like a perennial plant...not a vine.
Pothos gets a lot publicity as an aquarium nitrite and nitrate remover but that habit of vining is strong and it will send long runners to either trail or attach to the wall like i said.
There's even a pinkish Syngonium sold...not sure how well it would do. It might revert to green indoors.