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10-02-2009, 09:29 PM #8Senior Member
Yellow discoloration and dying branches
Vinegar or lemon juice work in a pinch, but no good long-term. My wellwater comes out at 8.0 ph, so I use phosphoric acid to bring it into range. (General Hydroponics phDown) Available at finer hydro shops and websites world-wide.
I try to use the proper tool for the job. Seems to work best that way...especially in the growroom. If it isn't formulated for the garden, I don't use it.
Unsulphered molasses being the only exception. :thumbsup:
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