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Constant nute burn @ Low EC

Hydroponics / Aeroponics
Constant nute burn @ Low EC
Hey guys. So I'm doing my second grow now and there's something odd occurring, that happened last grow too. My plants seem to be getting nute burn at low PPM's. They're currently 10 days old @ 220 ppm. The tap water is 120 ppm so that's 100ppm of nutes (~1/4 strength). The same thing happened during my last grow. The plants ended up being okay though but it's still quite worrying. The EC also seems to gradually rise, along with the pH, instead of dropping up until much later in vegetative...

Constant nute burn @ Low EC

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