Here's an interesting video I found about fiji's coral recovery. The video shows how bad the coral bleaching and dying occurred during the beginning 2000s but recovered within a decade. I guess snorkel bob has outdated data
https://www.youtube.com/watch?v=FHcsg3dnass#t=321
How can our hobby even put a dent into such resilient colonies of animals that have been inhibiting the earth for more than 400 million years!