How old is your system? I am sorry if I missed it. I started my tank July of 2017 and struggled with keeping acros alive. I started with all dead rock, dead sand and when parameters were stable, I tried acros. Thousands of dollars later to have just a bunch of dead sps frags. I simply gave up on the tank and let it do it's thing. I also have a very high bioload of fish. 50+ fish in a 360 gallon tank with 7-9 tangs ranging in size from med to XL. When I gave up, hair algae took over completely but something else also grew, coraline algae! When I tried to keep SPS, there was no coraline algae. Now there is a ton and the sps are able to hold their color and show PE. I run the zeovit system also but I am no where ULN.
I think people chase numbers too much and do this or that to correct it. My NO3 is above 50 and po4 .31 with hanna ULR yet I have no algae or cyano problems. I had more problems with SPS when my nutrients were low. Is my growth great? No, I know that is due to the high po4 but am I actively trying to reduce the nutrients? No, in time, the tank should be able to process the nutrients on it's own granted I don't overfeed like crazy. I will give the tank and zeovit time to do it's thing but right now even with such high nutrients which are completely out of the norm when it comes to today's reefing standards, I am having success which I never had before following the "keep your nutrients very low" methodology.
I would say, sit back and relax. Wait for the coraline to show up and a lot of it. Don't worry about your nutrients so much and keep your alk rock solid throughout the day/week. Let the tank mature and let your corals tell you what they need, not some magic set point numbers. I don't buy into the, you must keep your nutrients low to succeed with SPS. If you have the proper herbivores and CUC in place, you need not worry about algae. I am more than happy to post some pics if you want to see. They won't be the greatest pics you will see my SPS has color and PE even in a super high nutrient environment.
My net water volume is 378 gallons so I should be running 3.7 liters of stones right with about 370 gph through the reactor. I only run 3 liters of stones with 300 gph through the reactor. You can find my thread on the zeovit forum regarding high nutrients and zeovit. As long as my colors look good, are colorful with PE and growing, I am in no rush to make any changes. I believe any changes you make should be done slowly over the course of a few days if not weeks.
If you ask me, your corals look like they're getting way too much light or they're starving.