As the diver floats the treasure chest opens and closes to reveal the treasure’s interior, more alive and active Aquarium Ornament provides the feeling of the natural environment. Change your aquarium into a beautiful landscape artificial fish tank ornaments are made from premium resin and plastic, durable, non-toxic and pollution-free artificial fish tank ornaments are suitable for fresh water, good for your lovely fish and shrimp Fish Tank Decoration is ideal for various fish tank and safe for fresh and salt water