Aquarium farming is an activity for recreational purposes that dates to ancient times and has been technician through aquaculture. Today it represents an industry of around 20 trillion USD, with 1.3 trillion organisms traded globally. Associated with the activity there are environmental and health risks that must be considered in international marketing regulations. Costa Rica has a complex governmental structure for the trade of ornamental fish, however, the dynamics of trade in the country have not been documented. This study analyzes the commercial dynamics of import and export of ornamental fish in Costa Rica, with a focus on the associated environmental and health implications. A statistical analysis of OECD data for imports and exports of ornamental fish in Costa Rica was conducted. It was found that in terms of Central America, Costa Rica is positioned among the largest importers and exporters of aquarium species. Imports to the country come exclusively from the USA and Colombia, while exports are directed to other geographical regions. Trade dynamics have fluctuated in recent years, with a significant decline in trade.