anchor size
Assuming proper and prudent rode size and components and scope for the depth:For gentle wind and current areas, normal winds, a 12 lb Danforth is fine for the usual mud or sand. Up to 35 lbs if you encournter high winds, fast currents or rough seas or shell bottoms. IF soft silt or mixed bottom a bruce, rocna or bullwagga of 16 to 20 lbs. If you have gravel, grass or stone bottom, a heavier rock type like claw,delta, cqr, etc. is better up to 35 lbs.