Aqua ornaments are intricately detailed figures made from durable polyresin, making them completely non-toxic. They do not affect the biological balance of the aquarium, making them suitable for both freshwater and saltwater aquariums. Items with LED are only suitable for freshwater. Before placing the aqua ornament in the tank, it should be rinsed with lukewarm water; do not use any cleaning agents. Particularly effective effects are achieved with a diffuser and membrane pump connection. The rising air bubbles not only create an idyllic atmosphere but also provide the water with additional oxygen.