Barely budged the lighting, but did a 25% water change yesterday. Here they are today... Definitely more open.
Here is my theory: I had a FOWLR
for months and used the Instant Ocean mix. I'm guessing that the elements were not as concentrated as the tank these frags came from. Possibly, coincidently they began to close the same day as my initial water change that I noticed them closing. I'm using Red Sea Coral pro since I added corals... Could this be the case? I never tested alkalinity or calcium.