I have several large container ponds. A 4x4'x11.5" deep trough, a 4x8'x12" deep trough, a 3x4'x12" deep plant filter trough, a 4x10'x27" deep fish trough, a 6' diameter x 2' deep metal stock tank, and a 9' diameter x 28" deep poly stock tank. I also have three kiddie pools and other various small containers.