Fluorocarbon fishing line is more expensive than monofilament line, and one of the main marketing bits is that it's invisible underwater. Monofilament has low visibility underwater too, so how much difference is there between the two lines? Is fluorocarbon really invisible? We take several weights (6/30/50lb) of fluorocarbon and monofilament lines underwater to test their visibility side by side in a variety of water and weather conditions to find the truth. Lines shown in video: Spiderwire 6lb fluorocarbon Seaguar blue label 30lb fluorocarbon Yo-Zuri HD 15lb fluorocarbon Yo-Zuri HD 50lb fluorocarbon Berkley Trilene XL 6lb clear monofilament Berkley Big Game 30lb monofilament Berkley Big Game 50lb monofilament #fishing #howtofish #bassfishing #learntofish