Soft Coral issue

[Breakthecycle2]

Last week I bought Red Sea Liquid phosphate remover. I completely misread the dosing and completely overdosed the tank. I did a PWC and in a few days, the cloudiness went away and it seems fine. I did lose three Xenia frags and now my new one I got seems to be on the way out. I also have three frags of zoa's. Only one that I've had for 6 weeks is opened, the others won't open at all. My Green goni will also not completely open. My torch's, frogspawn, orange lobo and acan's seem to be fine. I dose twice a week with Fuel. What should I be checking for? There has to be something in the water (or lack of). The tank itself is a biocube 29 with Steve LED upgrade lighting.

PH is 8.0
Amonia/nitrite/nitrate are all zero.

 

[Reeffanman]

Try running carbon for a while to with some pwc's. zoas tend to be very tolerant and will bounce back in time once the water issue is taken care of