Wash and clean the fish. Poach the fish in a little water until well-cooked. Fillet, flake with fork and set aside. Pound or grind together the shredded lemon grass, galanga slices, garlic cloves, chopped turmeric root, chopped shallots, chopped dried chillies, pepper corns and shrimp paste. In a saucepan, heat the coconut milk. Blend in the flaked fish. Add the curry paste and the grated kaffir lime rind. Bring to the boil. Add the kaffir-lime leaves. Season with fish sauce and tamarind or lime juice to taste. Garnish with bean sprouts, cucumber slices and hard-boiled egg slices. Serve with steamed rice noodles. Make 4-5 servings.