Sps not doing good in Ai powered 50gal lowboy frag

[Mehdisekkat]

Thank you for reading

I have a 50gal lowboy frag tank powered by 4 AI primes and 1 hydra 26 . Calcium is at 539 and Alkalinity is at 10.2 . I have a mp10 and a nero5 on random mode with a max at full power , a lot of flow . Light settings below .My issue is I can’t seem to keep SPS . I’m getting bleaching and all around Unhealthy sps . Am I underpowered and should do a hybrid Ai/T5 light, or am I over powered and bleaching them out . The weird thing is my shrooms , zoas and other non-sps are doing great. Can’t figure it out and don’t want tokeep tinkering with the tank cause that’s only going to cause more problems . Any idea what it could be ???

 

[shadesatsetbreak]

Calcium and Alkalinity might be a little high. Other params?

 

[minus9]

PO4? NO3? Salinity?

 

[Thespammailaccount]

Low nutrients with high alk can cause issues

 

[Mehdisekkat]

Sorry a little late on the west coast . Will get accurate parameters in the a.m

 

[piranhaman00]

Yes your alkalinity is too high and I bet your nutrients are low, recipe for bleaching