After six months of growing the tilapia, the Minister of Fisheries and Aquaculture Development, Ms Elizabeth Afoley Quaye, and managers of the rehabilitation centre watched the inmates harvest the fish.
The catfish will be harvested in four months time.
She said the inmates were also equipped with skills in carpentry, masonry, tailoring, shoe making and electrical works.
Other modern industrial activities undertaken by the inmates include wig weaving, bridal accessories, canopy production, bamboo works and aquarium construction.
Mrs Baffoe Bonnie appealed to the public and corporate entities to support the Ghana Prisons Service with relevant equipment needed to facilitate the training of the inmates.