The study on the "Develpoment of an ornament fish breeding unit for the export at market at Rose Belle Sugar Estate'' emerged following policy decision to diversify our agricultural activities and the search for remunerative investment options. This study has shown that import and export of ornamental fish is a minor activity and ornamental fish rearing is done on an amateur basis in Mauritius. Breeding and production are not carried out in Mauritius. Ornamental fish species are imported and re-exported by few dealers. Marine ornamental fishes are captured and then exported on a limited scale.