My Duncan coral looked like this now it looks like this. It used to do this when hiding but it’s shrunkin a lot more n hasn’t came out in 3 days at least what do i do! My zoanthid is doing the same thing I got it a few days ago when I saw it in store it was large n gorgeous n he hasn’t came out once since I’ve had him

Added a second heater my tank is now at 76.1 but I noticed I have a safe amount of ammonia in my tank… how do I help this I do frequent water changes and I add magnesium quite regularly idk what else to do I’ve tried prime and a few other things none have seemed to work

Is this bad??? I need help please let me know my room and goby died my coral won’t come out n my clownfish is getting bad