Spotting and purple stem problem

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Holland Oates

Member
I can't seem to figure out what is hurting my girl (Vanilla Ksh). She's about 30 or so days from seed. Temps, RH, res temps, and air are all fine and I use distilled water. I've had this problem for a couple weeks now. Initially it started out at a ph that was too low (below 5.8 I'm sure) and a ppm of 180 (I have a ph meter but didn't buy the calibration fluid so I've been using PH test fluid... initially I was running my soup at a orange-yellow PH). Raising the ppm to 370 and the ph (light olive green-yellow, supposedly 6.0) seemed to slow it down a bit but the problem continued. Currently I am running it at the same ph (6.0?), and at a ppm of 530. I'm using GH flora. I noticed she doesn't drink much, and the ppm doesn't change too much either. The spotting starts at the leaf tips of the older leaves first, they are brown spots w/ yellow edges. They almost resemble rust spots. And the stems and petioles are a purple/burgandy color. I'm not sure if that is a different problem or related. Any help is appreciated, thanks :)





 
MrDank007

MrDank007

Well-Known Member
I don't grow hydro, but if you used distilled you need to add back in Cal-mag. I don't know if the nutes you are using have this in it. Conversely, if your tap is shitty and has too much cal-mag in it naturally (hard water), those elements become locked out and the symptoms can look the same. Considering you are using distilled with no cal-mag in it, I would guess you need to supplement these nutes back in on an ongoing basis.
 
H

Holland Oates

Member
MrDank007 said:
I don't grow hydro, but if you used distilled you need to add back in Cal-mag. I don't know if the nutes you are using have this in it. Conversely, if your tap is shitty and has too much cal-mag in it naturally (hard water), those elements become locked out and the symptoms can look the same. Considering you are using distilled with no cal-mag in it, I would guess you need to supplement these nutes back in on an ongoing basis.
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Cool, Thanks MrDank.
 
crazyhazey

crazyhazey

Well-Known Member
grapesnowcone said:
Can you use molasses to provide cal and mag to your plants?
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you can use a teaspoon of milk as well as a pinch of epsom salt.

also, try watering with rainwater, i any deficiencies but also because my medium already has either worm castings or rich N guano mixed in with compost.
 
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painkillerman

Active Member
are u using 3part general hydroponic flora series u said i use the same in r.o. water 2ppm if using NON-HARD WATER MICRO ONLY u have more than enough rotios are 5%cal 1%mag for those that dont use this product given u have purple stems n tips droop i say npk def no doubt do not add mag/cal this a mistake ppl often make it will only lock thing up componding ur problems you can do 2 things 1 get some calbration sloution if u cant mix a batch before u water take to hydro store or fish store they will ph test for u fish store give story that soundds good pen broke bur need to change tank blabla bla, mix e.c.1.3 ppm 650 1-1-1 ratio add h202 if never used before 2.5 ml/gal at first n 1ml added daily of first dose then every 4 days change res or top up with nute/ph'd water 2nd way add 1drop of wttn agent per gal mix fresh bash nutes 1-1-1 ratio 600ppm to start then raise every 4 days 50 ppm till plants respond wettn agent will lessen water surface tension allowing for better absorbtion in low nute solutions
 
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