Potato Cod and Bacon Chowder

Name: Potato, Cod and Bacon Chowder
Ingredients: 2 ounces pork jowl bacon, finely diced (sub regular bacon if necessary); 1 cup finely diced sweet onion; 1/2 cup finely diced fennel stalk; 4 tablespoons butter, divided (2/2); 5 heaping cups of 3/4 inch diced Idaho potatoes (about 5 medium); 3 tablespoons AP flour; 3 cups water; 3 cups clam juice; 16 ounces cod filets cut in 3/4 inch cubes; 1/2 cup half and half or light cream; 1/2 cup minced parsley; Salt and pepper to taste if needed; Thinly sliced green onions to garnish each bowl