One of the components that I think the hobby misses is sound and I decided to install an audio system under the tank.
I created a sound file with 24 hours of a mix of reef sounds and it's in synch with the programming of the pumps . The pumps simulate 2 high tides during the day.
The sound file begins at 10 PM and it begins with calm reef sounds, mostly clicks from shrimp.
In the morning, as the pumps increase speed, the sounds of a more active reef increase.
When the pumps get to 120% (they're overclocked), the sound of the waves is really loud.
I have one of the speakers right beneath the bottom glass and the other facing the front of the tank. The subwoofer is at the bottom of the cabinet.
The funny thing is the synchronicity of the pumps and sound is really noticeable, not just because of the movement of some corals, but also the sound of the surface agitation, because the 2 pumps are attached to the eurobrace.
I don't know if the fish can hear it and if they do, if they like it. I do.