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crouton

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    Rockwool Crouton pH Rise

    So i've been growing a couple of plant's capn style (not important you'll see why) but i've been essentially growing in rockwool mini cubes and have had a hell of a time keeping my ph some become too alkaline daily. I'll water in at 5.7-5.8 and my res will be 6.1-6.2 after one watering. This...