Mild Fish Chowder

• 3 potato cubed
• 2 cans nonfat chicken broth
• 2 cans water
• 3/8 fish filet
• 150 gr corn (frozen)
• 95 gr carrot (sliced)
• 90 gr leek (sliced)
• 16 gr rice long (grain)
• 14 gr margarine
• 8 gr flour