Pectinia vs Pectinia?

[swampy]

Has anyone had luck putting 2 different pectinia next to each other? Want to keep my new rainbow next to the space invader but also don't want to kill it.

 

[StatelineReefer]

 

[exnisstech]

I have a fairly large space invader and a smaller rainbow. I haven't had the courage to place them next to each other.

 

[encrustingacro]

I would say your coral on the right is actually a Mycedium, not Pectinia. However, molecular data shows that Mycedium and Pectinia are very closely related and may even be the same genus, though I probably wouldn't risk it.