The verdict is still out on color. We have installed dark Blue, Green, Red and Brown along with the lighter colors to see which, if any the fish prefer. Watch for updated photos and a story from Eric with news of our findings. If installed in more fertile waters, growth fully covers the color of material hidden inside and seems to have no effect on fish behavior/preferences.
One other proof that is coming out of our studies are the fry, shad and baitfish color/preferences. Hide the bait and the predators will be nearby to feed. Small bluegill and shiner were stacked in the cribs only a hour after sinking and blended well with the lighter colors, choosing them over the darker colors along side of them.
My guess is we will find color has little importance compared to location and other available habitat. Water quality is the other most important part of the puzzle, changing color and shape of any material submerged, the more fertile the waterway.
