Not sure what pothos are. Only fishing line I have is 20lb test lol it’s all I ever use for fish unless I’m in a big river or middle of a lake. Do I tie the roots to around the wood and fasten it with line. There’s actually a small hole in the middle of the wood, could I kind of wedge the roots into there and call it good?anubias or java fern. You can use fishing line and tie the plant to the driftwood. Eventually the plant will attach to the driftwood and grow off of it. I also would hang some pothos to lower nitrates.