I also have one. It needs little or no light. Mine is almost hid under the rocks in the mouth of a little cave. But mine is open most the time during the day. Good luck with yours . The books say to have a good flow for filter feeding too..........Warren
Carnation should be treated like sun corals. They required lots of shade where lights can not get to them. As for being a filter feed, I don't think they are consider to be a filter feeder.
I have seen a lot of beautiful red canation but, these corals just do not do well.
Here is an artical the pics arent there anymore but the artical is there. that has a lot of information on them.
basically the survival rate is dim they are one critter that shouldnt be purchased because of it.
HTH
Mike https://www.saltwaterfish.com/vb/show...highlight=cotw
I have had mine for probably 9 months now and it is growing huge twice as big as when i bought it. In a cave with a powerhead behind it blowing right on it. spot feed every other day.