[stepheus]

I use Bonsai Wire to tie my epiphytes i.e. moss, anubias, ferns. Well it doesnt have to be bonsai wires to work, it could just be stainless steel gardening wires for fastening plants. I find this easy even as the wood has already been secured into the hardscape, underwater. A word of warning tho, some might be made of copper or metals that are poisonous to fauna.