The purpose of this project is to design a sel-sustaining offshore fish farm such that it can be implemented into an abondoned oil and gas offshore platform. Fish food products are in demand nowadays due to the exponential increase in the world's population. On the other hand, the increase of unproductive offshore platform leads to more decommissioned of abondoned platform in the future. Furthermore, decommissioning an offshore platform could be as costly as up to a few million US Dollars. By implementing the design of this project, more abondoned platform could be reused for the production of fishes.