Fish keeping, in tanks or aquariums, dates back to Sumerians, ancient Romans and ancient Chinese civilizations. Fish keeping and rearing has evolved into what is collectively known as aquaculture, ornamental fish aquaculture has evolved to be collectively known as Ornamental Fish Industry. Worldwide Ornamental Fish Industry has been estimated to be worth some 15 billion US dollars. Asian Countries are major players in this field, contributing roughly 56 % of total export industry value in 2007. Taiwan’s modest contribution of about 1 % to global share seems very small; however, industry has been steadily growing 10 % in recent years to the point where it has been included among major industries for development within the National Development Plan. Taiwanese Ornamental Fish Industry is very diverse and has tremendous importance for economic development. Profiting from substantial development of this industry in Taiwan and free trade agreements between the R.O.C (Taiwan) and the Republic of Nicaragua, this paper proposes the creation of a novel business model to Design, Install and provide Maintenance services for fresh water natural aquariums using state of the art technology imported from Taiwan. The concept involves creating a unique decorative feature in the form of an aquascaped aquarium in places such as shopping malls, bank offices, clinics and hospitals, law offices and private residences. This new décor feature will beautify open living spaces to create a relaxing and calming environment for observers. Health benefits of owning an aquarium will be pointed out to customers, possible traffic increase to shopping malls, due to new attraction, will bring economic benefits to established stores. Maintenance service is a key factor to the success of business model as it will guarantee long run success of aquarium and will guarantee sustainability of business model.