Theater of Operations
It remains true that tarpon, which have large eyes and excellent vision, are easiest to fool when light levels are low. That's why after dark is typically most productive, dawn or dusk are next, and overcast days yield more strikes than bright days. Even though it is a bit more challenging, I still prefer to fish for them during the day, when I can fully enjoy the visual excitement of their incredible aerobatic antics. They also bite artificials more readily if the water is less than bathtub clear. There doesn't seem to be any such thing as too much turbidity.