Mighty, I do alot of nite fishing tight lines off the rod holders in my boat. During this time of the year and on into winter time when the lake temps are their lowest alot of the bites are so slight all you'll see is a slight bend on an ultralight rod or a line moving sideways. Other times just a "thump" on the rod. I think alot of times the crappie just sucks the minnow in and will spit it back out while theyre suspended in from of your minnow if you cant anchor up good enough to keep the boat still enough to see the bite.
Health nuts are going to feel stupid someday, lying in hospitals dying of nothing.