Quote Originally Posted by ditdotter
You do not need any expensive ph down. Cheap apple cider vinegar will do the job nicely. This is what Mandala seeds recommends you use on their plants. Also ph the water after you add the nutes not before. My plants seem to like the ph set to 6.2 to 6.3.
Ditdotter: Thanks for the tip on the vinegar. I will try it this weekend. I already popped for the pH down but it won't arrive for several days. I will be posting results.