Great strain. Next time try using Pro-Mix HP instead of potting soil with the Advanced Nutrients PHperfect line and mix in 1 part Perlite to 4 parts ProMix even though it has some in it.
Is your PH really 6.8 its a bit high?.How are you measuring the PH, what instrument? (the soil PH? the runoff PH? the feed liquid PH?)
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