What are Symbiodinium? How does coral bleaching effect them? 

You provide a very clear summary of research-based information. All of us (researchers) should learn how to do this. Nice job. Thank you !

Great video as usual. Looking forward to seeing the recovery of your reef, glad your fish are ok!

Where's my fav reef yt gone? Haven't seen new eps for couple of weeks

This is better than wikipedia... thanks!

Yes, I found this fascinating