Sun coral

[Scott.h]

yea, I dunno. My black sun coral is right now sitting on top of my rock work 4 in from the top of the tank. totally NOT what your "supposed to do".
Im not a big fan of changing everything for one thing.

I have no clue. Being they are non photosynthetic, in a way it seems like light wouldn't affect it one way or the other. I put that little powerhead on it so I'm curious to see if that helps.