As mentioned this 230g cooper anchor i use handles most light/mid currents well around where i dive in sydney. all depends on where you are diving as tidal changes can be very large in some regions. There is a larger 1kg version of this anchor that is rated for use with small boats which would have a bit more holding power if you have to deal with heavier currents and surge
Please let us know how this setup work with some current.
As mentioned this 230g cooper anchor i use handles most light/mid currents well around where i dive in sydney. all depends on where you are diving as tidal changes can be very large in some regions. There is a larger 1kg version of this anchor that is rated for use with small boats which would have a bit more holding power if you have to deal with heavier currents and surge