Just messin with ya Crackers but if purple below 20 ft. looks like brown and brown below 20 ft. looks like black, why wouldn't purple look like black and never look like brown below 20 ft.? Here's another one. They tell us red is the first color to lose it's color with depth, then why are so many lures red or have red in them? About 25-30 years ago I bought a color selector meter which has an arrow pointing to the best color to use at the depth the probe is. I used that color selector a lot for a couple years since I fish for crappies, and to me, it made no difference in my catch rate. Then along came the PH meter and guess what?... It corresponded to the thermocline. I have bought most all of the wacky lures out there. Some buzz , light up, make recorded noises when wet, and are banned in 19 states and half of Canada. I fell for it all. Remember that, when you see a kid with a cane pole and a can of red worms he dug up from under a cow patty, with a stringer full of whatever.
C.C.