When to be concerned about polyp extension?

[BigRedReefer MT]

Hi all. I'm new to the game and wondering about when I should be concerned about new corals poly extension. I ordered a few acropora and a chalice from WWC about a month and a half ago. The chalice I bleached but after hiding it further in the shade the tissue has stopped receding. I have yet to witness any extension after lights out. Also the " too legit" acro has very little polyp extension on only the top few mouths(??? Not sure about nomenclature). The " strawberry shortcake" acro has very good poly extension on all but one or two mouths. None of the acros have browned out and are the same color as they were when removed from the bag. I'm just wondering when I should be more concerned about their apparent unhappiness??

 

[Retro Reefer]

How old is your tank? It’s best to wait until you have coralline algae growing well before introducing sps

 

[BigRedReefer MT]

The tank is only 6 months old. The coralline is just starting to spread over the LR but all my snails that came in with just a spot or none are covered.

 

[BigRedReefer MT]

I suppose I jumped the gun a bit?