The Penn Plax Action-Air Mini Treasure Chest is an air-operated action aquarium ornament that is suitable for fresh and saltwater tanks. When connected to an air pump (not included), the lid opens and closes to release a stream of bubbles.

• Real underwater movement
• Connect to an air pump for fun opening and closing action
• Release of bubbles helps to aerate aquarium water
• Mini Treasure Chest Dimensions: 2.5"W x 2"H