I have a Hanna Cu tester. I am trying to get my Cu level to .5 in my QT.
I started with .29 Cu so I added 10 drops Cu, tested and got .45 Cu.
Added 5 drops, tested and got .49
Added 2 drops, tested and got .44
Added 3 drops, tested and got .39.
What the heck am I doing wrong?!? Cu should be going up, not down. I’m trying to do this very carefully as I don’t want to kill the three tangs I have in the QT.
I’m half tempted to pull them and just put them in the DT. I got them from djonesjr and he had them since Oct with no issues.