pH Lower Kit

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Lower the pH of your Tower Garden nutrient solution with the Tower Garden pH Lower Kit. This kit provides extra pH- solution along with a pH test kit so you can test your reservoir and lower the pH when needed.

For Tower Garden, the nutrient solution should generally be maintained between pH 5.5 and 6.5. Test your reservoir water first, then add pH- as needed to bring a high pH back into the recommended range.

This kit is for lowering pH. If you need to raise your pH instead, shop the Tower Garden pH Raise Kit. Need both pH+ and pH-? Shop the Tower Garden pH Kit.