I have heard of similar products. My experience on moon fishing calendars is that they are for the most part not accurate. I do know the moon plays a big part of catching fish as far as full moon and new moon phases goes. Meaning that I will normally catch alot more fish on new moon phases and I catch less fish during full moons, unless I am fishing at night and I catch alot of fish at night during full moon. But of course this doesnt always hold true too.

But as far as the moon fishing calendars, they say you can go out and catch fish at certain times during mid-day during certain days of the month. I have found this to not be true. As with most fishing and hunting, the best times are in the morning and evening year round.