Spinnerbaits can be very effective baits in saltwater. The big difference between freshwater and saltwater fishing with spinnerbaits is that most anglers use spinnerbaits rigged with some type of soft plastic minnow bait in saltwater compared to the more traditional skirt in freshwater. These soft plastic minnow baits tend to work much better for many different types of saltwater fish, especially redfish and speckled trout.