Hammer questions

[CWalters]

Had my hammer for a little under a week now. This is what it looks like 30 mins after the lights go off. Don’t remember part of it staying open and one part closed. Normal?

Salinity - 1.026
pH - 8.1
Ammonia - 0
Nitrate - 5
Mg - 1380
Ca - 475

Tank is 3.5 months after cycling.

 

[Mr. Mojo Rising]

Corals shrink when the lights go out, it’s normal.

 

[mtraylor]

Normal. Its time for sleep and rest. No light