If your parameters are fairly close to NSW, then it would make sense to switch over. AF Reef Salt will mix closely to these values, and with a shift downward in mag, I highly doubt that will impact corals. That said, no need to suspend dosing, but water changes will bring you in balance, so a perfect time to switch. The nice thing about having a salt lower in values, is that you don't have to worry about the water changes impact on alk, it mixes fairly close to where you maintain your levels. This will only further balance your tank, IMO. Sorry for confusion, I was under the impression that you wanted to decline alk from around 9-10dkh, that is why I suggested to take dosing offline, that way these levels would fall. Cheers


