Been thinking about this one for awhile, and have some thoughts and questions, so I thought after reading Mooch's latest thread that it might be time to throw this out there as well.
I think that we can all agree that all Ps -n- Zs don't do equally well under equal amounts of light. Some do better under brighter lighting, others do better under dim lighting.
I think that we can also agree that many can be acclimated to different levels of lighting, if its done correctly and slowly over time. What "correctly and slowly" means in some cases is going to depend on the specific coral we are talking about.
I think that we can also agree that some polyps will change their appearance based on the intensity of the lighting they receive. For the sake of discussion, we are going to ignore the effects of different lighting spectrums (although I realize it still plays into the discussion in some degree).
I think that we can also agree that exposing polyps to too intense of a light too quickly can also cause negative effects, such as bleaching.
So, my questions are;
Besides the obvious bleaching of a coral, what are some of the signs that indicate that a polyp is receiving too much light?
What is the overall time frame during which this can and does occur? Minutes, hours, days, weeks, or even months?