I've done as much research as possible and still don't have an answer. I would like to use general hydroponics PH buffers but I dont know if I can
GENERAL HYDROPONICS: pH Buffers Everything ive read says to use hydrogen chloride and Sodium hydroxide, well I found some on the internet but I have to pay a large fee to ship. So I looked for a local place all I found was this
pH Buffers | Taylor Scientific but I don't know which to get. thanks