title is quite self explanatory. i have seen ph up and ph down at wal-mart in the pool supply section but i dont know if that is ok for my plants. hit me up GC.
There is lots of stuff you can use to + / - your PH. baking soda, lemon juice for one, all the way to Dolomite and Sulfur. Just google your thread title and you should find what your looking for.
i am adjusting water that i will be watering with. as of right now i am using lemon juice and baking soda. im not 100% sure but i think i remember reading that too much lemon juice can be bad for your roots or something. i am really not sure. is lemon juice and baking soda is a safe for my plants?