Get vigorous plant growth using PH Down by X Nutrients. It contains phosphoric acid that helps to decrease the pH in a nutrient solution to an optimal level. It is available in gallons, quarts, 2.5 gallons, 5 gallons, 15 gallons, and 55 gallons.
How to Use?
Step 1: Add PH Down to the nutrient solution.
Step 2: Now, test PH and repeat the procedure till you get the desired pH level.
Note: Recommended PH for the majority of plants is 5.5 to 6.5.
SKU/Model Number: DL-xnHPHDOWN-1Q
Quantity: 1 Quart
Just like the ph up this stuff goes a long way. Just a few tiny drops to adjust it by the .1, and 1/4 cap by 1.0 for me. getting it exactly at a number is a bit difficult only because a few drops can really jump the ph. Not a bad thing in the long run
I will say it took a couple of times to send me the down version, but company never quit trying I will hand it to them. Great folks out at the home front, no question.