Here in Southern Oklahoma, we have a lot of luck on baits with red. I would say that baits like red shad would outfish a shad 5 to 1. We use a lot of purple and red in worms and tubes as well. I don't care what the fish see. All I care about is what the fish hit.
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Cal
Fishing isn't addicting, I just have an uncontrollable urge to go!
This has been a burr under my saddle for years. The color red, like any other color, needs a certain amount of light to actually be "red". Reducing the amount of light the color red receives makes it change color from brown and eventually to black. So, the factor that determines if red is actually red is the amount of light is receives. In clear water, red will stay red the deeper it is because more light passes through clear water. In murky water, it may stop being red after a couple of feet and turn brown or black. No color DISAPPEARS, it simply changes to a darker shade of that color to grey or black.
That being said, I use red hooks all the time, but I can't tell you if they make a penny's worth of difference or not. I just don't see how they might hurt, so I use them and in shallow and/or clear water I know the color will show up, so it might be useful in creating one more strike.
I think red changes differently and at deeper depth depending on the color and clarity of the water. But so will the red blood and gills of real bait fish. I would think predator fish would know the hue or tone of red in even very deep water. Even if every thing appears to be in black in white there a lot of different tones.
What you are concerned about here is having something in terms of colour that helps your bait stand out a bit rather than blend in or merge into the background and which help attract the attention of the fish. Its why I suspect colours like red and silver glitter and other glitter colours work quite effectively. Its why these hexagonal wobblers we use here in colours of red and silver work effectively and get hit very effectively when trolled. Red certainly does tend to merge into black over distance above or below the water. Its why hunters who wear red to stand out and camouflage colours as well often get shot over distance.
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