Gsp pale

[Xproject]

My GSP looks pale and is barely opens I dont know if is because the lights or the nutrients I have another GSP that is doing fine compared to the other one i have my calcium at 420 DHK at 8 nitrate at 4 I dont know what's is going up. I also upload a pictures of a other coral that is no doing well either. Any advise please

 

[Gumbies R Us]

This doesn't look like GSP; it looks like a finger leather coral. What about everything else in your tank? Is it doing fine? Can we see a FTS as well? What about flow and light par in your tank?