Mike O'Brien
New member
I read a study but it was algae competing with coral. Could be very similar. Basically the algae was exuding DOC's which were effecting the microbes on the coral. IIRC they were starving the coral for Oxygen causing death.
I would tend to think that if corals could become immune to something like that they would have. Especially on a reef, chemical competition is an ongoing affair.
In my own experience I had one coral that started out competing against algae. In this pic, the white around the base of the coral is the area where the coral killed the algae. Eventually, I think this took it's toll on the coral and the algae started to win the battle and overgrew the coral.
I would tend to think that if corals could become immune to something like that they would have. Especially on a reef, chemical competition is an ongoing affair.
In my own experience I had one coral that started out competing against algae. In this pic, the white around the base of the coral is the area where the coral killed the algae. Eventually, I think this took it's toll on the coral and the algae started to win the battle and overgrew the coral.