A cooperative feeding demonstration with spotted rose snapper was conducted in 2013 between USSEC and Martec Industries S. A. at the Martec experimental aquaculture site located at Paquera in front of Isla Cedro, Puntarenas Province, Costa Rica. The objective of the demonstration was to show the feasibility of using a diet in which a feed grade soy protein concentrate (SPC) having high protein and low oligosaccharide content partially replaced fishmeal. Results of the feeding demonstration showed that inclusion of SPC NutrivanceTM at an inclusion rate up to 26.4% in the spotted rose snapper diet did not affect snapper production parameters, and that there was no difference in fish performance with the SPC diet and a commercial diet formulated with fishmeal as the primary protein source. Hence, the SPC-NutrivanceTM appears to be a potential ingredient for manufacturing aquafeeds for marine fish species.