A lot have been said here and it was all from own experience that members chimed in.
It happens a lot on this issue that if you ask, you get a lot of different answers and all can be helpful.
If you going to follow the recommendations you doing to much in a short time and that is even worst for the tank.
What I look at is light, nutrients, flow and WC.
Go back to basics and do a 1 maybe 2 gallon WC per day if possible, feeding your corals is a risky topic.
I would if I look to your PO4 # change your skimmer a bit and remove your filter socks or make holes in the bottom of them and feed the fish a bit more.
In that case you let through some important nutrients that corals need but it will be natural, if after a week or 4 still suffering on that issue you can start feeding.
Keep a close eye on Po4 as it should raise close to 0.04 or so.
I have seen lots of tanks that are awesome looking with a PO4 of 0.1 or higher.
My ZEO tank is stuck at 0.02 but trying to get to 0.04
You also can check your water parameters as they are now and request a test from
Triton-US Call Us at (707) - Triton8
Remember nothing good happens in this hobby if you go fast, and if you think you go slow, slow down even more.
Good luck.