Gsp closed for 5 days??

[jwells954]

May 3rd(Saturday )water test results below. 90gal tank i did a 15 gal water change Sunday. Since Monday my gsp has not opened up. Anything to worry about? I do have some brown hair algae growing in the tank.looked like some got on it. I tried brushing the coral yesterday with soft brush. Going to run new water tests tomorrow.
Nitrate- 0.8
Phosphate- .06
Alkalinity- 8.9
Calcium- 487
Magnesium- 1550
Ph-8
Nitrite-0
Ammonia-0
Salinity-1.026
Temp- 77.7

 

[Tahoe61]

If there's any algae growing on it the coral will remain closed. Try a turkey baster and increase flow. Perhaps power heads and wave makers need cleaning? Double check salinity.

 

[jwells954]

If there's any algae growing on it the coral will remain closed. Try a turkey baster and increase flow. Perhaps power heads and wave makers need cleaning? Double check salinity.

Hey. I did the turkey baster and flow is good. I did brush with soft toothbrush on 5/9. Still hasn’t opened. I only saw like 3/4 come out. Should i consider a peroxide/water dip?