They create a bio-load in essence of what I previously mentioned including salt mix constituent uptake (calcium, alkalinity, magnesium, etc.), but very little in concerns of NH3
. Many sps
such as acropora, millepora, pocillopora, seriatopora, etc. will slough their tisssue (necrosis) creating a chain of death if their health is impacted (great water parameter swings, physical trauma, allelopathic trauma...). The waste generated is highly contagious ime. Of course, many soft corals such as sarcophytons and especially sinularias can have traumatic impacts on sps
and even lps
health. There is usually only two outcomes in terms of encroachment: One coral continues to grow over another coral and kills it or they fend each other off with each taking turns damaging the other over time.