Re: Monofilament (fishing line) vs Beading Wire?
Standard monofilament fishing line is not good for beading. It yellows and eventually will break as the chemical makeup of the line 'decomposes'. It does this to comply with environmental standards.
Fireline, Dandyline, etc. are multiple strand fibers that don't break down in this way and many beaders, myself included, love using them. They don't need to be prestretched (like nymo) and I don't even bother waxing or otherwise conditioning them, either.
For non-seed bead work, I prefer Softtouch wire, 49 strand in the .019 diameter. I use it with glass, crystal, pearls, stone and metal and love its drape and durability.