How long will mahi mahi stay fresh if not air tight in freezer?
Fresh raw mahi mahi is sometimes used in sushi rolls, so it is definitely possible to eat it when cooked rare. However, you want to be very sure of your source since such light cooking may not kill all the parasites that could be present. A safer approach is to cook mahi mahi to a medium rare/medium state.
If you planning to bake Mahi Mahi, the recommended time for baking it is 10 minutes per inch. A medium sized mahi mahi can be cooked in the oven which is preheated to 350-450 degrees Fahrenheit for 12-15 minutes. It is important to lessen the cooking time if the oven temperature is increased. Make sure to keep checking the fish every 5 minutes in order to see if the flakes could be removed easily.