Help! need to get ph down!

neroceasar

Well-Known Member
I recieved 3 clones in grow bags(4"x8"), the soil in those was organic promix. transplanted them immediately into 10"x10"X14" pots that had a fox farm mix of 70%ocean forest and 30% light warrior. as it turns out they had spider mites on them. so bought some azatrol to contain those and have been spraying those down every few nights. I've been watering every 4 or so days and some of the lower leaves on the clones started to yellow. checked around the soil with a ph meter and the promix is way alkiline but the fox farm stuff is fine. thought maybe they got a bad watering or something before me(been ph balancing with ph up using r/o water) so i tryied flushing it but can't seam to get the ph down. i've tried using the plain r/o water (ph=5), i've used distilled water with a ph close to 7 and also tried adding vinegar with to success. Is aluminum sulfate my only option now? will try to get pics up soon.
 
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