Cooler with aerator vs dedicated aerated bucket: Cooler works for short trips, bucket wins for overnight or multi-day bait storage

A cooler with a battery-powered aerator works fine for a few hours on the lake — it keeps water cool and oxygen flowing. But cooler lids trap ammonia from fish waste, and the deep, narrow shape limits gas exchange, so you’ll need to change water every few hours. A proper aerated bucket with a wide opening and built-in aerator handles long-term bait storage much better.