How to Increase Water pH for Healthy Cannabis Plants
To bump up your water’s pH for cannabis, you can use a commercial pH Up solution (most are potassium hydroxide or potassium silicate) or something simple like baking soda. The trick is to add a tiny amount, mix it in really well, and test again. You’ll repeat this little dance until you hit your target, usually 6.0 to 7.0 for soil grows and a slightly more acidic 5.5 to 6.5 for hydro setups. Alright, let’s get right to it. Think of pH as the gatekeeper for every single nutrient you give your plants.







