15lb non- lead anchor, only anchor in soft water. Buy a polypropylene rope at a box store, 3/8”-1/2” in diameter (whatever fits your anchor setup) but bigger is easier on the hands. Polypro floats, so if your anchor gets jammed you can go to shore, walk back, grab the rope and retrieve your anchor. Do not go heavy so you can anchor in heavy water unless you seek to meet rescuers professionally.