Grower2020
Well-Known Member
Temp between 21-25, humidity although bit higher in this pic usually 40-60. Light is above recommended height but still hitting 600ppfd at top of canopy . Have circulation and carbon filter exhaust fan.
Checked acidity with ph prong and has high acidity at bottom of pots so I started to flush today. Wasn't watering until run off and I think might be a nitrogen toxicity because the fertilizer I was using was much too high in nitrogen and was 27% nitrogen just before flowering started. All I can think of is nitrogen toxicity causing the acid build up at the bottom. The readings aren't as acidic at the top of the pots but slowly read more acid the more I press the prong down. Will flushing fix this issue and how long before they recover ? You can see which ones got it the worst . How many times should I heavily flush to get rid of the toxicity ?
Checked acidity with ph prong and has high acidity at bottom of pots so I started to flush today. Wasn't watering until run off and I think might be a nitrogen toxicity because the fertilizer I was using was much too high in nitrogen and was 27% nitrogen just before flowering started. All I can think of is nitrogen toxicity causing the acid build up at the bottom. The readings aren't as acidic at the top of the pots but slowly read more acid the more I press the prong down. Will flushing fix this issue and how long before they recover ? You can see which ones got it the worst . How many times should I heavily flush to get rid of the toxicity ?