You can get the phDown online or at a hydro shop. But test your water to verify you'll need the phDown, first. If your water is acidic already, you might need phUp. Don't purchase what you don't need. :thumbsup:
Rusty Trichome Reviewed by Rusty Trichome on . Need advice:Trying to adjust SOIL PH level Soil Ph level at 7-7.5 tested.I know that's high for soil. Using 3 gallon pots, Into 3rd week of grow and leaves turning yellow. Which is what told me to check PH.Anyhow added 2 tps. of Sulfur granuals (as per package directions) to each pot, mixing in to soil. Can anyone PLEASE tell me how long it will take to see results. Rating: 5