The new safety and environmental friendly specimens preservative fluid system of marine specimens： The system is natural, non-toxin and mildew proof, which can be used in various kinds of specimens. Especially appropriate for pickled specimens such as fish, shellfish, algae, mollusk, shrimp and crab. Specimens produced by these system is efficient in color and shape preservation, can greatly replace nowadays traditional used of formaldehyde solution. Specimens are shown in clear vision and can keep in beautiful color and appearance during a long time, those preservative fluid don’t need to be changed until four or five years.