When using an electric skillet to fry fish you should fry the fish in the electric skillet at 325 F.
Preheat the electric skillet to the 325 F degrees and make sure the fish is thawed out before frying it in the electric skillet.
If you try to fry frozen or really cold fish it will not cook properly and the outside of the fish will be cooked but the inside of the fish will still be raw.
So make sure you allow the frozen fish to thaw before putting it in the preheated skillet to cook.
After preheating my electric skillet to 325 F I like to add some butter to the skillet and let it melt and then add the fish.
The butter helps to keep the fish from sticking to the electric skillet and helps add some flavor to the fish.
I also like to sprinkle some garlic powder over the fish for an added taste.