Coral closed what to do

[Mr.Storm]

My tank is a 20 gallon cube that has been up for a year now and the parameters are my zoathids, torch coral and hammer coral are all closed what can I do
salinity 1.025
cal 430
alk 7
mg 1300
phos 0
nitrate 3
nitrite 0
amonia 0
ph 8.2

 

[Mike from TN]

What’s the temp? Any fish and how are they doing?

 

[Mr.Storm]

The temp is 80 degrees and I have 2 clownfish and a liner Benny the fish are doing good

 

[Mike from TN]

I’m far from an expert but your parameters look okay. Was this like an overnight occurrence or did they slowly start opening less and less?
Possible change in lighting strength????

 

[Mr.Storm]

They slowly started closing and no light change

 

[sfin52]

Phosphates at zero?

 

[Mr.Storm]

Yea

 

[PokeFish]

Did you solve it?