Well good news is that this stuff in the pics (besides the sand and the bryposis) are on the LR I got from the LFS. I can pull them out ASAP and toss them if necessary.
I can prep for a WC now and do one tomorrow. And also get a Phosphate test kit to be sure.
I can take out the rock with the majority of the bryposis and do a peroxide dip. and continue the Mg for another week or so. There are mixed reviews online so im willing to give that another few weeks.
Now, since the algea is not on the marco rock, but the LR is sitting on the marco rock, this is not a 100% fix but if I can insure the phosphates are 0 and remove those rocks is this a good plan? Or is a nuke still suggested?
If i need to nuke its not going to happen for a while. A rock flew off a truck and cracked my winshield yesterday and the state is after me for taxes even though I paid them so Im not having a good week. This is the last thing I wanted
edit : good thing to note is this started when I added the Mg and removed the chemi pure and purigen because i did not want it to remove the trace elements from the kents tech M that apparently kill the bryopsis.