What fishing line is more invisible monofilament, braid, or Berkley Superline?
The other answerers are right in saying fluorocarbon line would pretty much be invisible, but with fluorocarbon you have to watch how you do the knots, many will say fluorocarbon line is awful because they didn’t watch how they done their knots with fluorocarbon, you have to draw the knot slower and also make sure it is lubricated. Because fluorocarbon is will heat up more than regular monofilament when you are doing the knots, so if you draw the knot like a regular monofilament you will end up with knot that will break very easy, I use fluorocarbon and watch how I do my knots and I can pull with all my strength after and the knot will not give out. For a monofilament/any other line to be less visible, it depends on the area/areas you are fishing in, like… dirty/muddy water, clear water, e.t.c. I put a link that has different things found in tests on fishing line, hope it helps you.