The Marine Metal Products' Baby Bubbles B-18 Portable Air Pump can turn a cooler, bucket or ice chest into a live well. It aerates up to 3-gallons of fresh or salt water to keep bait or aquarium fish alive and is an excellent beginner's aerator for use keeping small quantities of bait fish (minnows, shrimp) alive. An adjustable stainless steel clip allows the Baby Bubbles air pump to attach to most containers. The B-18's rubber booted switch helps keep moisture out and extend its life. The pump comes with 24" of airline tubing and an air-stone. It's suitable for fresh or saltwater use and is ideal for minnows or shrimp. The B-18 pump can run for up to 20 hours on 1 or 2 alkaline "AA" batteries (not included). Can be used in ice fishing to keep fishing holes from freezing over.