The company takes orders over the Internet, offers the services of experts who make house calls, and delivers. Customers hence save time and energy. Core's best-selling fish include carp, goldfish, and "blood parrotfish," which are red and round like balls.
中科讓消費者上網訂購「招財魚」，由於專人送貨、還有專研魚類的魚博士到府服務，消費者省時省力，包括錦鯉、金魚，與身體通紅、外型像顆圓球的招財魚「血鸚鵡」，都成為這一波水族市場的熱門「商品」。