Many residential ponds are smaller in size like 50' x 50' give or take a few feet either way. These smaller ponds cannot accommodate a large fountain, a floating fountain for small ponds will make a spray that is appropriate for the smaller size so you won't get over spray. But small ponds need aeration just like a large pond so it stays healthy and keep the algae from developing, and it looks so pretty at night with LED lighting when viewing from your backyard.