Red, is not visible in depths over 15ft but don’t going throwing all your red dyes away and pledging your angling allegiances to all baits blue. There is one major fact to consider and that is what is the most the popular colour of bait found in most angling stores today? Yep the colour red! This proves that we shouldn’t always base our angling approaches around scientific fact, but sometimes the best approach of all is to base our attack on experience and results.