Not a bad day :)

Caught at Tithe Barn in Titchfield last week

With the recent trend seeming to be using brightly coloured line such as orange/pink/purple etc etc...I'm asking what folk think about whether the Carp can see it under water or not? Rob Hughes underwater masterclass taught us years ago that colours change depending on the depth of the water right? So can they see or line or not? 🥴🤔 I totally understand the bright colour mainline for aiding to see it at night when fishing three on a spot to ensure your lines don't crossover and preventing utter chaos. What do y'all think?