Toadstool shriveled for 7 weeks!!!!!!!

[MysticBlue]

Hey guys so I have a toadstool coral that has not been doing good for 7 weeks straight!!!! He’s been closed and every couple of days I’ll see a little bit of polyps come out but then an hour later he’s closed again. I’ve moved him from high light high flow to low light high flow to low light low flow and so on and so forth. All my other corals are thriving!!!
parameters are as follows
Calcium 425
Alkalinity 8.3
Magnesium 1,500
Phos .15
Ph 8.2
Temp 78 degrees
Salinity 1.025

This is what it used to look like vs now

 

[vetteguy53081]

Hey guys so I have a toadstool coral that has not been doing good for 7 weeks straight!!!! He’s been closed and every couple of days I’ll see a little bit of polyps come out but then an hour later he’s closed again. I’ve moved him from high light high flow to low light high flow to low light low flow and so on and so forth. All my other corals are thriving!!!
parameters are as follows
Calcium 425
Alkalinity 8.3
Magnesium 1,500
Phos .15
Ph 8.2
Temp 78 degrees
Salinity 1.025

This is what it used to look like vs now

Your mag is a bit high (1300-1350 desired) but issue u see is location in which it’s lacking water flow
These guys need moderate light and medium water flow
Center of tank seems best to acquire the needed light and flow requirements
Also a little iron and strontium in the water