@C-Reefer I’ve been experimenting with Matrix and copper, and so far (Day 14) no absorption is occurring: https://www.reef2reef.com/threads/seachem-matrix-for-qt-use.363132/
Excellent news! So is there a possibility of keeping the Matrix cycled and keeping it up and running and go ahead and get my clowns as soon as GobiWan is out of QT?
Copper was added today at 7 drops. I will test for copper tomorrow after adding 7 more drops.