First fish and inverts

[Istrom]

Hey all, I just got a Pajama Cardinalfish, a frag with some Polyps and what looks like maybe some stony coral, and another frag with orange Polyps. What do I need to look out for health-wise? What symptoms should I look for specifically in the Polyps?

 

[Mattyfelts]

pictures would help, make sure polyps are open and looking good. Make sure they arent bleaching or browning.

 

[Istrom]

I'm feeding the cardinal PE Mysis shrimp.