@THEPugetSound You of all water bodies should know that coral like to grow where it is warm. Okinawa is at 24-27° N latitude. You are at 47°N, where it is cold and coral does not like to grow. Don't try it.
In Okinawa, coastal fishermen have acted upon coral reefs' decline, banding together to become coral farmers, much like planting trees to restore a damaged forest
[📹 Heppoko Taylor]