Guess I need to update this thread. Tank is still alive (at least the fish are), but most of the corals are gone. A combination of things, AEFWs, high PO4, Bayer, etc. I think it was too much for most of the SPS/LPS in the tank. Zoas and mushrooms are doing good. It started when I discovered AEFWs around the first of the year, then I had some residual bayer get into the tank and kill all my bacteria/microfauna, which ended up killing my PO4 processing. The GFO reactor was clogged as well, so things started going down hill quickly.
I ended up selling my skimmer and buying an ATi Aquacone 250is and started zeo about 4 weeks ago. I've always wanted to try zeo but always thought it was too time consuming. The first 2 weeks is a little time intense but now it is pretty simple. I travel for work and it hasn't been too hard on my wife or tank sitters. I am getting comfortable with zeo and now my PO4 is hovering around .02ish. I plan to remove the biopellets this week and probably take out the rest of my cheato (it's starting to turn brown). I removed the GFO when I started the zeo so I'm confident when I remove the fuge/BPs that I shouldn't get a spike in PO4.
I need to get my salt levels down to zeo ranges as my alk is hovering around 8.5 and since I don't have a lot of corals to eat up the remaining alk, I'm doing 10% water changes 2x per week with NeoMarine salt to try and decrease it. I'm planning on adding a few test corals early this week to see how they react to zeo. I'll try and take a weekly picture to show progress. I need to take a few other pictures of the tank.
The water is crystal clear now and most of the rock is cleaned (it was getting a lot of fuzz on it). Fish are growing and are happy now that the PO4 levels are down since I can start to feed them again.