Nothing to really update. I dropped copper power for 30 days. It worked. Pulling copper back out now. With cuprisorb and carbon.
5/26 1.06 ppm. 6/10 0.54 ppm. I have to get to 0.01 ppm before I can add back in live rock.
Oh set up my 55 as a qt. Trying something different tho. Fowlr and sand...