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Greenleaf Nutrients and MEGA CROP happy to be on RUI!

Discussion in 'Rollitup Advertisers' started by GreenleafNutrients, Jul 28, 2017.

  1.  
    rkymtnman

    rkymtnman Well-Known Member

    for the guys and gals already using MC (I won the medium bag), i'm having issues with pH dropping steadily downwards. Is anybody else seeing this?
    I'm doing DTW and have mixed up 15 gal of RO and 15 gal of well water and after I set the pH, it drops daily until it gets out of range (less than 5.5) in less than a week.

    i had this same issue when i tried using fulvic acid a year or so ago and wondering if it's the humics or fulvics in MC?

    any advice? thoughts?
     
    GreenleafNutrients likes this.
  2.  
    suthrngrwr

    suthrngrwr Member

    Have you noticed if the EC is falling as well? Could you try using less pH down?
     
    GreenleafNutrients and rkymtnman like this.
  3.  
    rkymtnman

    rkymtnman Well-Known Member

    I do DTW. EC is constant.

    the pH goes down all by itself, no pH down needed.
     
    GreenleafNutrients likes this.
  4.  
    ChaosHunter

    ChaosHunter Well-Known Member

    I only drift a little upwards but I'm using 60 PPM tap water.
     
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  5.  
    ChaosHunter

    ChaosHunter Well-Known Member

    Its been staying locked in where I set it mostly, my drift is only 0.1=0.2 range one week rez
     
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  6.  
    rkymtnman

    rkymtnman Well-Known Member

    so yours goes up? that's not what i'm seeing with RO or well with 140ppm.

    here's my results:
    10/17 new res 15 gal RO set pH at 6.0 52.5 grams MC EC=0.95
    10/18 5.92
    10/19 5.77
    10/20 5.63
    10/21 5.51
    10/22 5.09
     
    GreenleafNutrients likes this.
  7.  
    ChaosHunter

    ChaosHunter Well-Known Member

    I wonder if the buffering in the tap water has something to do with it ?
     
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  8.  
    rkymtnman

    rkymtnman Well-Known Member

    those results were with RO so no buffers in it

    but had the same drop over time with well water with 140'ish PPMs the week before.
     
  9.  
    suthrngrwr

    suthrngrwr Member

    Only thing I am aware of is carbonates being consumed by plants. Once those are used up, the pH buffer is gone. You could try supplementing additional carbonate sources to keep the pH steady.
     
    GreenleafNutrients and rkymtnman like this.
  10.  
    rkymtnman

    rkymtnman Well-Known Member

    i don't have the same problem with GH maxibloom though. pH is rock steady for a week no matter if i use RO or well water.

    i'm still leaning towards humics/fulvics as i had the same pH drop when I tried using ful power fulvic acid last year.
     
    GreenleafNutrients likes this.
  11.  
    suthrngrwr

    suthrngrwr Member

    I am curious why the fulvic acid would have that effect though. Perhaps it is increasing the plant's metabolic rates causing them to consume more nutrients faster? Do you notice this drop in pH during veg. growth or flowering?
     
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  12.  
    rkymtnman

    rkymtnman Well-Known Member

    i'm thinking that fulvic acid is acidic. the pH drop was whenever i used ful power i.e. the whole grow.

    also, since i'm drain to waste, the metabolic rate of the plant has no influence on the nutes in the res.

    i'm stumped.

    i really hoped MC would work out but i go out of town alot and i have to have a stable pH in order to do that.
     
    GreenleafNutrients likes this.
  13.  
    ChaosHunter

    ChaosHunter Well-Known Member

    I'm thinking that my tap water "city water" is buffered for PH ? I know well water and RO water doesn't have the same buffers. @GreenleafNutrients could tell you more on that then me.

    @rkymtnman you may be right in the humics/fulvics bringing it down.
     
    rkymtnman likes this.
  14.  
    ChaosHunter

    ChaosHunter Well-Known Member

    On a different note I'm curious as to how well does Primordial solutions play with MC ? https://primordialsolutions.com/

    I use PS when I hand water grow, also use the true blooms as a foliar . PS has to be used as needed and cant sit in a rez.
     
  15.  
    rkymtnman

    rkymtnman Well-Known Member

    i think so too. same thing happened when i tried ful power.
     
  16.  
    ChaosHunter

    ChaosHunter Well-Known Member

    I just did a rez change. 6 gallon DTW, Tap water, 6 gr per gal MC. PH 6.1-6.2 - 1750 EC - 860 PPM "Hanna 9811 Checked/Calibrated"

    I run a small pump for circulation off and on.

    I'll see where my PH drifts to and report back in a day or two.
     
    TCH, suthrngrwr and rkymtnman like this.
  17.  
    rkymtnman

    rkymtnman Well-Known Member

    i do about the same. 15 gallons either well or RO. have a small waterfall in the res for aeration/circulation. only thing is that i used 3.5 grams per gallon for EC of about 1.0 so not as strong as you.

    let's see what happens.
     
    ChaosHunter likes this.
  18.  
    ChaosHunter

    ChaosHunter Well-Known Member

    I'm really pushing MC to find the celling in my test grow. I wanted to see what the experience would be for someone to just follow the recommended feed chart. I'm also trying it as a clone solution :idea:

    I'm the same as you on the autopilot mode "self watering DTW". What do you use as your watering setup ?
     
    rkymtnman likes this.
  19.  
    rkymtnman

    rkymtnman Well-Known Member

    i've been doing dtw hempy buckets for a few years now. just one pump in the res into a 6 outlet manifold with aquarium tubing out to each plant site.

    i'm just about to finish a grow where i've been using same set-up on GH waterfarms. not one res change. i cut the sight tubing on the side of the waterfarm shorter to act as a overfill drain.

    did kinda a side by side of same strain with one in waterfarm, one in hempy. both ended up same height but the waterfarm buds are much much bigger.
     
    ChaosHunter likes this.
  20.  
    GreenleafNutrients

    GreenleafNutrients Well-Known Member Rollitup Advertiser

    MEGA CROP is compatible with other products, there is nothing in it that would make it incompatible, so you do not have to sorry about restrictions.

    This was in response to your question about the Primordial Solutions compatibility.

    hi Rkymtnman

    I really don't know about the PH drift you are experiencing. It isn't designed to drift in ph or change ph over time. You are the first person I heard about reporting this issue, I will definitely keep an eye and ear out if anyone else has the same problems.

    The only think I can think of, is you mentioned you have a waterfall/re-circulation going in your reservoir. Maybe this is promoting some type of bacteria growth, and the bacteria could release some type of excretion that alters the ph?
     
    rkymtnman likes this.

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