LPS not opening

[Gianluca]

Hi everyone, I just added a display refugium to my main tank, and since then both my LPS, torch and acan aren’t opening. All my softies (other than my mushroom) are all open and doing great, same goes for my montipora. I thought it could be flow at first but I adujsted the outtake to match the old the flow of the tank. It’s been two days where they open ever so slightly but nothing else. What could be causing this?

 

[Stuartmercer]

We need info - perameters such as salinity, nutrients, calcium, alk, etc.

 

[Gianluca]

We need info - perameters such as salinity, nutrients, calcium, alk, etc.

Sorry completely forgot to add that.
Ammonia - 0
Nitrite - 0
Nitrate - 20
Phosphate - 0.08 ppm
Alkalinity - 180
PH - 8.4
Calcium - 410 ppm
Magnesium - 1280
Salinity - 1.026

 

[Gianluca]

i am thinking could I have lowered my nitrates too fast? I went from about 50 to 20 in a day

 

[Gianluca]

The torch closed up a bit more and the Acan is about the same. It’s the most green I have seen them in white lighting