[jankytomato]

Aquasalt, was that question directed to me? Allelopathy is what is commonly called chemical warfare among corals. It is thought to be less problematic to segregate families although the whole thing is pretty random: certain species poison some but not others. It's not well explored; there has been a lot of discussion about leathers and mushrooms being extra aggressive, but it turns out sps even do it to some extent. Even sps and lps can clash.