Tips ongeting coralsbto thrive not survive?

[Reefer302]

I was wondering on how to get corals to thrive and get full polyp extention? Instead of just doing ok

 

[WV Reefer]

I was wondering on how to get corals to thrive and get full polyp extention? Instead of just doing ok

You are going to have to be more specific. Which corals? How old is your tank? What are your parameters? What lights and equipment are you using? Can we get a full tank picture and a pic of the corals in question?