Originally Posted by
reefkprZ
http:///forum/post/3227523
outside the fact that Any flesh of any organism can be damaged by too intense of lighting (uv damage). I dont know what sort of proof your looking for here in this case. but it is possible to inflict uv damage on them just like you can uv burn anyother coral in the ocean. (or any land animal either for that matter) they all have different tolerances. I for one dont know the specific tolerance level of sun corals. but fail to find any evidence that suggests normal reef lighting levels will kill a sun coral. -sorry I dont have any proof either way but its 100% positive you can UV burn any piece of flesh in existence its just a matter of how intense it needs to get to ibnflict damage
the real danger to sun corals in lighted areas is algal smothering, since they are obligate organismal feeders they must defecate and their waste in an improper habitat tends to encourage local algal growth (hence the usual set up of in a dark area with abundant food where photosynthetic algaes cannot thrive).
I've seen the issues with algae, but in reading, people seem to be indicating that they are sensitive enough that they should not be exposed to direct M/H lighing. No mention was made about PC lights so I wasn't as concerned about burns. I placed mine in an area with enough flow to keep them blown clean, but wanted to be sure that they would not experience tissue damage because it also allows plenty of light to reach them. It also makes feeding them a whole lot easier.
I guess what I'm looking for is someone that has either personally experienced it, or reference some piece of research that "sheds some light" on how tolerant the actually are. I've also read that they are not as sensitive to light as once thought, but rather live in dark or shaded areas solely due to their natural food source. Again, nothing concrete, just theory. I am watching mine closely, but I only have PC lights. Someone in another thread asked about mounting them in full light where they could see them better. I posted my findings, but I'd like to hear from someone who knows for sure.
If you have sun coral, where is it placed in your tank?