Is this duncan ok?

[santeeeyyy]

Hey this pic is a pic I took last night and the next morning. Normally he is open fully. All my paremeters are stable, I just fed him this morning because my tank is too clean, no ammonia and no nitrites.

 

[Matt Bravo]

Yeah, corals close at night. Think of it as their form of “sleeping” as long as it opens up again when lights come on there’s nothing to worry about