Here is one my nephew uses on suckers and pike. They are great with crackers.
You can scale up the recipe for your size batch.
Skin and fillet fish
-Cut in 1 inch pieces and cut off all blood line from under skin.
-Combine 1\4 cup pickleing salt to 1 quart of fish and mix well to coat all
pieces. Cover with cider vinegar and let stand for 5-7 days.
-Rinse fish.
-Heat 3\4 cup suger and 1 cup white vinegar.
-Pack fish into jars with lots of onions and two teaspoons pickleing spices
to one quart.
-Pour warm juice over the fish, cap and refrigerate.
-four days later they are ready to eat, the longer they sit though the
better they get.