>>2003217Sabiki rigs are super easy to make depending on the amount of hooks and the bait you're trying to catch will depend on the size hook and line to use.
Threadfins won't eat pieces of Shrimp so with frozen Shrimp you're limited to like pin fish, Mayan Cichlids, Mullet you can catch on a hook using like bread or oat meal balls. Or snag them with a treble hook.
A cast net will work but some places your not allowed to cast net and cast netting can damage the vegetation