They say that instantly healthy isn't expected, but I expect that this could help some reefs that are recovering, especially since:

> However, he said that his previous research published in the journal PLOS ONE found that despite not having ears, coral larvae also seemed to use sound to find and settle on reefs.

...

> "[But] there's the opportunity that if you play healthy reef sounds you may bring back a much richer reef community than just fish."

I think the conception is that work can be done to restore the reef and then this can be utilised to promote the newly revived reef to attract fish etc back.

There’s a lot of fish that feed on corals. I would worry that inviting the fish back before the reefs are well established could cause the corals to get eaten and wiped out.

Perhaps it's more like the stores that play classical music because teens won't think it's cool to hang out there

Depends on the teens.

Sirens call

Last year I volunteered for a few hours at a coral farm operated by a non profit that restores reefs. I didn't even know it was possible to grow coral before that.

I would assume technology like this would be useful after newly planted coral was established, or maybe at an artificial reef like a sunken ship.

what we can plant corals?

holy shit i never knew this