Some interesting videos on how fish see colour, and how colour is effected by water:
http://www.youtube.com/watch?v=tpQTh_tnJ6c
http://www.youtube.com/watch?v=TTi5nJqEzvo
http://www.youtube.com/watch?v=QTqyVX3oZk0
http://www.youtube.com/watch?v=p5P6UMGiT7o
Just thought I would share with you all
Cheers
Bow Man
http://www.youtube.com/watch?v=tpQTh_tnJ6c
http://www.youtube.com/watch?v=TTi5nJqEzvo
http://www.youtube.com/watch?v=QTqyVX3oZk0
http://www.youtube.com/watch?v=p5P6UMGiT7o
Just thought I would share with you all
Cheers
Bow Man