I need some help with anchoring. It is probably the thing I have the most trouble with in fishing. I fish the Ohio a lot and I have on of those richter I use in the front and it seems to hold well. The problem is the boat wants to turn in circles if I don't put down a back anchor as well. It will swing like 10' each direction over and over. So I try to put down a back anchor and it never seems to hold. My back anchor is a mushroom anchor I think 18#. Is there something I am doing wrong or does anyone have any suggestions? It seems like to get them to hold I have to take most of the slack out of the anchor lines and then if a barge comes to close the wake will pull up anchor. Any help is appreciated!