I try to mix the fish with the fresh lime juice and remaining liquids about 30-45 minutes before serving, as the fish becomes increasingly chewy in texture as it sits in the marinade for longer than one hour.
You can use whatever hot peppers you like to make this dish—in Peru, this dish would be more often made with a small hot yellow pepper known as aji Amarillo, and is often served with crunchy giant corn kernels on top. You can buy the peppers in paste form online, or try to locate the peppers fresh. The hot peppers and aji Amarillo paste both freeze well.