I can't be the only one who's seen corals sting, burn or otherwise destroy other corals to death if they are too close and are competing for territory. What we've all come to know as "coral warfare". But yet most corals are sensitive to or stesseted by surrounding algae growth.
Why is that corals can't just sting away encroaching algae the same way they do other corals?
Why is that corals can't just sting away encroaching algae the same way they do other corals?