Just an update because im excited about things.
I did another large water change tonight, about 40 gallons.. I tackled the sump this time around because i had some pretty hefty alge down there that i had let go last time because i did not want to remove it all at once. I could actually suck the alge right off the rocks, tank walls ect.. It was a glorious moment, seems like 3 months or longer i have been trying to whip my tank back into shape and it is finally paying off. I still have some halmedia and calupra issues in the display but even they are showing signs of wearing down.
I plan to stick to doing large water changes and running carbon and phosar. I plan to back off on the phosar a hair, i think i may have damaged some corals droping phos too quick, i have 200+ grams of media in there, but im sure they will be fine.