There is a lot of work being done on the different clades and roles of coral symbionts. There seems to be a time where they will take up any clade, but at some point the seem not be so welcoming. Some clades are more heat tolerant than others. Really interesting stuff. I may have to culture some of them this spring, so I got that going for me, which is niceI do wish I knew more about all this stuff. I can’t help but think about the role of zooxanthellae in a corals health. The link talks about being as diverse as possible. Could repopulating corals with a different strain of zooxanthellae make a difference? Does it even work like that? Maybe I’m way off course. I’m a simple man. I’ve seen caddyshack 1000 times.