The only thing that I see that aren’t good is my rainbow BTA… I posted it that my BTA split and it doesn’t have any color now and there like bleached like look awful… but my other BTA is all open and healthy…Your po4 isn’t terribly high in my opinion… is there something wrong with your tank? Are the corals showing any ill signs? I wouldn’t chase a number because everyone says it’s gotta be less than .1 blah blah… if your tank is happy I’d leave it and see what root cause is of the po4 and Eliminate that before adding chemicals or gfo. I used to be a huge fan of gfo but it’s caused more damage than anything once I took a step back and looked at my tank over all..