I just added a bag of chemi-pure into a new tank full of fresh saltwater (no sand or rock yet). It's in a passive chamber in the
sump that gets less flow than the rest of the system. I did it to theoretically make the water clearer before I add the "cooked" rock, and to see if it raises the
pH, which was at 7.85.
Q: Are there any adverse consequences of adding chemi-pure, given that this was before the first cycle in this system?