I'm at a loss as to why most of my corals have tissue regression and die within weeks of purchase. Even Zoas are barely open. All sps and lps die. Only success thus far is Anthelia, leather and a large polyp blasto. Hanna and ati labs are wnl's but I have had significant issues with dinos. I was running my lights at 30% but recently tapered them to 20%, see attached PAR map and pic of zoas. Zoas were at 160 and now at 110.