Legal Crab Bait for Blue Swimmer Crabs in SA

Am not keen on buying 3 or 4 Fish heads for Crab Bait at $4.50 a packet because there does not seem to have much fish meat to attract the crabs, there mainly the hard fish head.

Spoke to a guy catching worms on the beach and he said he used Carp as crab bait but the best bait was sting rays, but watch out for the ones with the barbs. Also saw on a Outback Show someone was using Snappy Tom (Cat food) . Just open the can partly and spike it to hold into the net. Seemed a good idea to me also. The Snappy Tom was for mud crab fishing.

What are the legal aspects to using Carp, Sting Rays and Snappy Tom in SA.

I know I can get the Sanitised version from the Fisheries Dept.

Peter