There are so many questions and secrets about coulours under water, that it took a while for me to understand them using research and experimenting under water. Most of my collected knowledge I introduced into a new book, which should appear next year in the german language for the german market. Some of the things in my book I want to share with you...
The first important question for anglers is: What can fish see under water? Can they see colours? Is it possible to see colours under water? These and many similar questions pre-occupied every lure-angler thoughts, mine included!
To understand colour-vision under water, we have to distinguish two factors:
Which coloured light can reach the fish-eye?
Which colours can fish see, if they reach the eye?
see the rest of the article by by Uli Beyer here >>
http://www.esoxhunter.com/ColorsInWater.php