This floating submarine comes from the Aqua Della steampunk range. These themed ornaments are designed to match each other, to create a consistent atmosphere. It is made of polyester resin. This decoration is completely and does not affect the biological balance in your aquarium. The decoration is suitable for both freshwater and marine aquariums Instructions: Take the decoration carefully out of the box and rinse with tepid water. Cautnot use any soap, all-purpose cleaners or other cleaning products (e.g. hydrogen peroxide, thinner, turpentine).