Devil's Hand Leather question

[rcreations]

I bought a Devil's Hand Leather a few days ago and it looks fine, except that it only gets the little branchy growths during the night. During the day it's just smooth. Does that sound right? I thought the branchy growths come up during the day.
Here's are my water params if it helps:
Density: 1.025
pH: 8.4
Phosphates: 0
Alkalinity: 10 dkh
Calcium: 420
Ammonia: 0
Nintrite: 0
Nitrate: <5
T5HO lights with individual reflectors (3 actnic, 3 10,000)
Could it be that it's annoyed by my flame angel? I noticed he was picking at it during the first day, but he didn't do it today.

 

[rcreations]

I don't have any pictures, but it looks like the top one during the day and the bottom at night.
https://www.saltwaterfish.com/site_11...ot_parent_id=4

 

[yosemite sam]

Those are the coral polyps. They should be coming out with the lights on, normally. It can take corals several days to get adjusted to a new tank, so don't panic, but make sure the angel isn't bothering it.

 

[rcreations]

Not sure I can do anything about the angel picking on it. Haven't seen it do it lately but if it keeps up, I'll have to find the leather a new home. Really strange that the polyps only come out at night, then they retract when the lights come on.