You know, I went over to see Mark's tank, and his halides were on, and he had crazy polyp extension. I have virtually none during the day. I noticed particularly his validia, since I have a frag of the colony. Also my digitata has some polyp extension, but nothing compared to the mother colony at SWC. I hope I'm not being overly concerned, but I'm still not sure that something is not wrong. I just added a phos reactor, but what else should I check for problems.
I'm wondering if I have a light problem. I have a 400W 12k reeflux in a lunibright over the 29 gal at 18" off the water.It is dimmable, so I have it dimmed at 50%. No idea on the par. Is that too much/little?