Well if the fish are on the bottom already there is no way that they can feed lower. They will strike what they see in front of them. If they only feed on what is above or in front of them is a myth why is it that I cannot just fish on bottom all the time and catch crappie? Why do fishermen ask what depth water the crappie are biting in? Why is it that I can catch crappie at say 3' and not 4' deep at times if this is was a myth? I am just saying that it looks like this old saying that crappie only feed upward is more truth than untruth or everyone needs to just fish on the bottom.