To grow healthy, strong cannabis plants, you need clean water. Water quality varies by region, and most city water is chlorinated to kill bacteria that are harmful to humans. Chlorine is easy to remove, so water is often left standing for 24-48 hours so the chlorine can evaporate. The pH of the water will also vary. Cannabis plants grown in soil should receive a pH of 6.3-6.8. The correct pH helps cannabis absorb nutrients. Simply use a pH tester before you water your plants.
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