New corals not opening

I test ammonia and nitrite just for s***s and giggles. I’ve got a evo 13.5 and to my surprise it’s been pretty stable for a few months. Little fluctuations but nothing crazy.........thus far.
 
I would love to see your parameters as I am having the same issue with my Duncan. Purchased four days ago and was huge but since in my tank, nothing…..

here are mine:
PH. 8.0
Nitrates finally up to 3.0ppm
Alk. 12 (fixing slowly with daily water changes)
Cal 440ppm
Phos. .2.0-2.5ppm
 
I have removed that thing off the Duncan now this is what it looks like
 

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I would love to see your parameters as I am having the same issue with my Duncan. Purchased four days ago and was huge but since in my tank, nothing…..

here are mine:
PH. 8.0
Nitrates finally up to 3.0ppm
Alk. 12 (fixing slowly with daily water changes)
Cal 440ppm
Phos. .2.0-2.5pp
Your phosphates look like multiple typos. Can you confirm?
 
I believe that is fairly high. I think around .03-.06 is ideal. I know I’ve read that corals can still thrive in around .1 but you’re at more than double that. Hopefully someone more knowledgable can check in.
 

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