My Coral Is Not Opening

I have got this coral from my fellow hobbyist. He checked my parameters and said everything is fine to add corals. Few are doing good but other don't . Please help. Thanks in advance

 

How long have you had them? I've found that some zoas take longer acclimating to a new environment than others.

 

How long have you had them? I've found that some zoas take longer acclimating to a new environment than others.

3 days .

 

I'd say they're still getting acclimated, some of mine I just got are still very sensitive and will close up and stay closed for the day if I mess with them even after having them for 2+ weeks.

 

Okay I shall wait

I'd say they're still getting acclimated, some of mine I just got are still very sensitive and will close up and stay closed for the day if I mess with them even after having them for 2+ weeks.

 

I agree, I'd say they are just some zoos that are taking their time to adjust. A lot of corals will take up to a week to settle in properly and be happy. Often corals will open up just a little bit more each day until they are happy and open fully, particularly corals like SPS and Gonipora that are a little bit more sensitive and can take a while to settle in.