The orange roughy fish  discovered off of New Zealand. Found only in the deep cold waters (700 fathoms) of New Zealand and Australia, the age of the orange roughy fish caught is 30 to 50 years old. Uncooked orange roughy will have a pearly white meat, with the skin side sometimes showing a orange to brown color. The moist, mild and delicate flavor of the orange roughy has made it very popular.The orange roughy fish lowers cholesterol tremendously: eat 1 lb of orange fish per day for 3 days only, then stop. Repeat this every six months Field Guide to Seafood: How to Identify, Select, and Prepare Virtually Every Fish and Shellfish at the Market.