Struggling with lps and sps

[Stormhaven]

All lps and sps die .
Lps receds sps turn brown and stn tips down.
Alk is stable at 8.5
No3 20ppm
Tanks a year old and lit by Hydras average par 175-250.
From ICP test any red flags .
Thanks

 

[fishguy242]

hi,looks like imbalance,cal is low mag is high,iodine almost none, i am old school the rest you need a scientist,best of luck

 

[Stormhaven]

hi,looks like imbalance,cal is low mag is high,iodine almost none, i am old school the rest you need a scientist,best of luck

Agreed.
Water changes to commence.