Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
I use plastic covered twist ties for very few things in the tank, so there is not a lot of rust.
Plastic coated, not paper coated.
I use them to hang thermometers, and to fix a few other equipment problems, like suction cups that give up. I hang spray bars or power heads with twist ties.
You can buy it by the roll for garden use, but all I have seen is bright green (ugh!)
I use the twist ties that hold things to the packing material, and from garbage bags (watch it- some of these are paper coated)
I have not used them to tie plants to a branch. IMO that would involve using too many twist ties. Too great a chance of problems.
The gel type of super glue
Very thin rubber bands, for example the type sold in feed stores for braiding horses' manes. It rots, but does not cause problems.
Fishing line (Very difficult to tie tight enough). Can cause problems if it comes loose.
Polyester sewing thread. Does not rot. Can cause problems if it comes loose.
Cotton thread. Rots. Can cause problems if it comes loose.
Stuff that rots can work, if the plant sticks to the rock or branch quickly, but is not great for the slower growing plants.
Permanent sticky things (super glue) seems to be the best all around option.