Be sure to watch the YouTube video at the end. This would be great where you could insulate and buffer the sound on a really deep tank.
https://reefbuilders.com/2017/11/07...il&utm_term=0_88f38223c1-64ea1226c3-433574461
https://reefbuilders.com/2017/11/07...il&utm_term=0_88f38223c1-64ea1226c3-433574461