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Thread: ph tutorial

  1. #11

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    thanks great post

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    GEORGE (11-12-18)

  3. #12

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    Great info, helps a lot thanks

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  5. #13

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    this clears a few things up for me too thanks

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    GEORGE (11-12-18)

  7. #14

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    top info a must for any hydro grower

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  9. #15

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    great post! explains all the ph/cf technical stuff in an easy to understand way. well done mate

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    GEORGE (11-12-18)

  11. #16

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    very helpful and instructive post,thank you for putting this up.

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    GEORGE (11-12-18)

  13. #17

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    great tutorial cleared up few things for me thanks

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  15. #18

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    Hi, great tutorial but still need some further advice.

    I've taken the plunge and gone for a waterfarm set-up and have got 3x barneys blue cheese on the go.

    Had no probs at all in veg.
    They're now into 2nd wk flowering but the Ph keeps dropping like a lead balloon. I do the nute mix in a 80l res to a Ph of 6.0 and top-up plants as and when. About 2hrs after I've topped em up the Ph drops to 4.5 on one plant and 5.0/1 on the other 2. Because I'm in a hard water area, I'll fill a 210l res with 50% water run through the R/O system then top off with rain water. I'm using the GHE nutes with the soft micro. The plants are about 2ft tall and lovely and green (perhaps that said...way too many fan leaves for my liking...not enough light penetrating through foliage). EC running at 1.4 and pretty constant. Got a separate air stone in each farm and running the dripper 24/7. Temps running at 82 on and 72 off.

    Any ideas?

    Just as an afterthought on your comments regarding Phos build-up. If I'm constantly having to Ph up, would using bicarbonate soda be more helpful?

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    GEORGE (11-12-18)

  17. #19

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    just what i was looking for 1st class post.

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    GEORGE (11-12-18)

  19. #20

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    Very helpful post ....This chart may help you more understand the the plants intake of nutrients. Optimal value is 5.8, but 5.5 - 6.2 will be okay'ish?

    Click image for larger version. 

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