Soil run off ph

Discussion in 'First Time Marijuana Growers' started by mexicanna, Jun 24, 2017.

  1. Hey guys

    Got a quick question for you. I'm coming to the end of my first 2 plants and I've just done a flush. I decided I may aswell test the run off. Anyway it came out to an even 5.0. Seems way low to me. So just so I don't make the same mistake next time ( if this is a mistake? ) what could be the reason for this. Was I a little heavy on the nutrients? The water I was using was always a constant 6.8 every time so I stopped checking. I know the nutes I was using lowered it to around 5.8 - 6.0. I was running the nutes on every feed at full strength in flower. The plants never developed any visual problems throughout. Organic soil and organic nutes.


  2. soil runoff, AFAIK, is going to be more acidic than the water thats going through every time. as long as your plants dont have any bad symptoms and look ok, i wouldnt worry about it

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  3. Those cheap ph pens have a habit of going out of calibration after a few days. You may be lucky but my advice is to buy calibration fluid and some kcl for storage. These things help a lot. Assuming that is your issue. If it's hunky dory then I would suggest a little bit lower pH in your nutrients solution. 6.8 seems a little high for my tastes. Between 6 and 6.5 is optimal for soil. Any higher and there will be root issues. I know slightly acidic soil promotes root growth so it's always better to err on the lower side of things. 6.1 - 6.3 would be my suggestion.

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