PH dropping when feeding marijuana

A question from a fellow grower:

I used only 10 gallons of Technaflora Nutrients but the PH keeps dropping frequently and low. Ive been trying to keep it between 5.5 - 6.2 preferably 5.8. What am I doing wrong…

It doesn’t sound like you are doing anything wrong, the PH will often fluctuate depending on what the plant is doing, the PH will often start to drop and become very acidic during flowering. You just have to be aware of this and prepared to compensate for it.