Hey All,
Always start nutrient change out with about 1.2-1.3 EC and 5.8 pH. In 5 days one of my plants pH swung to about 6.6 so I pHed it back down to about 5.5 and it rose back to 6.4 within 4 hours. What causes this? E.C stayed pretty constant and roots look great. I just changed out the entire rez to hopefully get it back to normal. Not sure what is causing these large swings within 4 to 8 hours.
Always start nutrient change out with about 1.2-1.3 EC and 5.8 pH. In 5 days one of my plants pH swung to about 6.6 so I pHed it back down to about 5.5 and it rose back to 6.4 within 4 hours. What causes this? E.C stayed pretty constant and roots look great. I just changed out the entire rez to hopefully get it back to normal. Not sure what is causing these large swings within 4 to 8 hours.