Hi, my GSP coral isn’t opening up. What might be going on with it? I’ve had it a couple of weeks. Tank is almost two years old (May) so it’s not brand new. Any ideas? I did a lot of serious tank cleaning today with a water change so it should help if something is off in nutrition wise. I don’t have a magnesium, cal/phos tests.
This was when I got it
This was when I got it