Lay the fish into the sauce. I put mine in frozen, so they took about 7 minutes to cook through. If defrosted, they'll take less time. When the fish is almost cooked, add the prawns and scallops. Continue simmering for 2 to 3 minutes until the prawns are pink. Add salt if needed. Chop the cilantro leaves you set aside previously and sprinkle it over the curry. Serve with freshly steamed rice.