Boiled Fish (Sinigang Na Isda)

In a saucepan, bring to a boil water, lemon juice, onion and tomatoes. Simmer for 15 minutes. Add radishes and fish and bring to a boil. Simmer till radishes are tender yet crisp. Add the hot peppers and watercress or spinach. Add patis or salt and pepper to taste.

INGREDIENTS:
8 cups water 1/2 cup lemon juice
1 cup chopped onion
2 cups diced ripe tomatoes
2 cups radishes, left whole
2 pounds sea bass or bluefish (shelled shrimps, fresh croaker, whitefish or squid may be substituted), cut into fillets
3 long, fresh hot green peppers
1-1/2 pounds watercress or spinach
patis or salt and pepper to taste