Is there a reason that magnesium increases would be delayed after dosing?
I mixed a fresh batch (1.5 gal) of IO tonight and my Salifert test showed it at about 1230 (consistent with previous batches of same bag).
In order to get it closer to tank values I dosed 7ml of Kent Tech M, shooting for 1310-1320. I verified my math with the reef dosing calculator and it was right on. 1ml/gal increases 18.3ppm.
About 30 minutes after dosing I tested as I assumed 1.5 gallons with a pump running would be plenty. The test came back with no noticeable change.
I tested again 3-4 hours later and it was maybe 10ppm higher. Not enough to say it’s not just test variance.
So, is there a chemical process that takes a while to happen and result in readable changes or was my Tech M not shaken up or some other thing?
I mixed a fresh batch (1.5 gal) of IO tonight and my Salifert test showed it at about 1230 (consistent with previous batches of same bag).
In order to get it closer to tank values I dosed 7ml of Kent Tech M, shooting for 1310-1320. I verified my math with the reef dosing calculator and it was right on. 1ml/gal increases 18.3ppm.
About 30 minutes after dosing I tested as I assumed 1.5 gallons with a pump running would be plenty. The test came back with no noticeable change.
I tested again 3-4 hours later and it was maybe 10ppm higher. Not enough to say it’s not just test variance.
So, is there a chemical process that takes a while to happen and result in readable changes or was my Tech M not shaken up or some other thing?