I am making an electric fence to stop snails entering a new garden area (the concrete patio).
The problem is fixing two wires the right distance apart without them shorting.
What material can be used that has two conductors held apart nicely?
I tried naked copper or aluminium wires stretched out but find them hard to fix into place; especially as these metals are not springy at all.
The 3.8 Volts I am using has shown to be enough, the snails cannot cross the double wire in the photo. A high value resistor should prevent the battery discharging rapidly if there is a brief short.
If it is too hard am willing to try just a pair of wires on several large plastic pots as in the photo.