Gday Im a bit concered with the pH of my perlite recirc.
Im getting a dirft in the pH each feed. Normally the pH wont move too much and Ill have to adjust it at the end of a 12 hr period.
However, the pH shift on this grow swings from 5.5 to 7+. after each feed!
Im using symbiot nutrient additive, and a citrate for the pH down. I dont know if the organisms in the solution would use the citrate??
I may try the 'other' bottle of down they sold me. and concider not using symbiot additive.
Has anyone experienced this before??
Im used to the pH changing just not this much, after each feed!