sick plants with deficiency. need help.

myass

Active Member
I have 2 plants that are sick. I use tap water so I had to add about 2ml of GH pH down per gallon to about 5.8. I used drop test kit so ph might not be accurated. these plants are 5 weeks from seed. I stated Dyna gro grow qtr of suggested 2 weeks ago. Looked kinda like boron or mag def? The bigger plants also showed transparent spots on leaves. I couldn't find any thrips so might also be N def? I'm newb and the first dwc ever. Temp stays around 70. Ppm measure last time measured was 397 and 418. The grow is also pretty slow after move them to the buckets. I need to cover the bucket up this weekend with black film. I have brown roots. Not sure if salt build up or mold. Help please! Thanks again in advance.
 

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faller200

Well-Known Member
I don't know how many times it needs to be said but new growers need to learn to read the forum I would like to see everyone have a successful grow. Way to many questions about fixing problems and the real answer to to prevent the problems. All that info is here already and just needs to be utilized.
 

SnaFuu

Well-Known Member
Good point faller! I used to answer each post but now i realize new people come back with the same issues everytime.

And you know, i had every problem under the sun when i started. But somehow i was always able to use google to find someone with the same problems as me.

In all honesty, this guy probably posted this and THEN did some research and found his problem(s).
 

faller200

Well-Known Member
I have to say that I did not post that comment to put anyone down. I posted it as the best advice I can give to a new grower. I too had many problems when I started DWC. DWC is a simple and productive method of growing. Note I said that is was simple not easy.
 

faller200

Well-Known Member
I have 2 plants that are sick. I use tap water so I had to add about 2ml of GH pH down per gallon to about 5.8. I used drop test kit so ph might not be accurated. these plants are 5 weeks from seed. I stated Dyna gro grow qtr of suggested 2 weeks ago. Looked kinda like boron or mag def? The bigger plants also showed transparent spots on leaves. I couldn't find any thrips so might also be N def? I'm newb and the first dwc ever. Temp stays around 70. Ppm measure last time measured was 397 and 418. The grow is also pretty slow after move them to the buckets. I need to cover the bucket up this weekend with black film. I have brown roots. Not sure if salt build up or mold. Help please! Thanks again in advance.

I like the drops. They work great. If it's green bring it down a bit, if it's orange bring it up a bit and if it's yellow leave it alone. You don't have to be rock steady at a specific magic number. In fact it should wander up and down just stay in the ballpark. Those expensive meters won't do you any good. They do look cool though and you get to sound real technical. as far as a ppm meter i have never used one. I let the plants tell me what they need.
 

myass

Active Member
Well thanks guys for answering. I did try to google and have been lurking on the site since decided to grow my own. There are many useful posts and articles with picture examples. But honestly there were several deficiencies look the same to me. That's why Id like to see if experienced people can diagnose better. These plants were in black containers together and have only been in the orange for 3 days. I just panda film them. The leaves already looked like that before i change to the buckets. But the root only got brown after the transplant. I'm thinking its n or boron def and I have root slime. But I don't think the def is caused by root slime. The new roots looked pretty nice though. I washed the roots but still brown. They are not dead just brown. Im thinking cut the roots and reseedling. I'm on the budget (gotta wife) so didn't add any bene. Might make my own following pros instruction in the future.
 

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SnaFuu

Well-Known Member
yeah bud those roots need some work. they are definitely your problem. as soon as you see multiple deficiencies (clearly multiple in pictures) it's either ph, lockout, or roots. add the droopy leaves and id bet it's your roots.

confirmed by the pics

so look into running sterile res or microbe tea

good luck
 

myass

Active Member
I'm ready to throw in some ice water bottles. I think the res temp of 70 is too hight for do and easier for bacteria to grow. I want to cut off the bottom 3/4 of the root and cut off some big leaves before I sterilize the buckets. Do you think its good idea? There are are several opinions on this. Some said it'll kill the plant. Some said it'll stunt the grow which I don't mind delay a couple of weeks as long as the plants get healthier. If I cut it'll be majority of the root so I'm kind of scared but at the same time I don't want rot to infect other healthy white ones.
 

myass

Active Member
Thanks for the post. I didn't want to go out and buy $50 pH meter either. I didn't use ppm meter when I started but bought a cheap one online. Guess ppm is easy to control if u know your tap water and the nutes u put in. Right now I'm on the edge to starts over (along with my tomatoes). I'm going to bleech the buckets but really don't know what to do with the brown root. Aa for ph Can I drop my pH to orange and let the plant do its thing? Usually a week later pH would swing to green. Will plants obsorb max different nutes as the pH swings?
 

SableZen

Well-Known Member
Thanks for the post. I didn't want to go out and buy $50 pH meter either.
No need to spend even $50 dollars to get both an EC and pH meter, for example: $39.99 Milwaukee pH600 + HM EC-3

[Use the coupon code: 'hmdigital' for a bit more off btw]

I still double-check things occasionally with a pH drop kit (I also have some pH paper strips), or if I don't want to cross-contaminate from an outdoor plant with an indoor plant or something. But meters are so convenient and cheap...

As far as dropping the pH to 'orange' and letting it swing to 'green'... that's a huge range there. With most pH test drop kits, a solid orange would be way too acidic and a solid green would be way too basic. Probably be better off going from yellow-with-a-tinge-of-orange to a light-yellow-without-any-green-tinge (otherwise known as the if-it-doesn't-look-like-urine-it's-not-in-a-good-pH-range).
 

SnaFuu

Well-Known Member
^^^^ agreed.

As for the roots, i have cut ALL the roots off plants before, multiple times. They sag and look real unhappy for a couple days, but as long as the problem is corrected new roots will come shooting out.

good luck!
 

superstoner1

Well-Known Member
So, you are growing a plant that can save you hundreds to thousands of dollars or earn you hundreds or thousands of dollars but you don't want to have the proper tools to do it? Why?
 

myass

Active Member
So, you are growing a plant that can save you hundreds to thousands of dollars or earn you hundreds or thousands of dollars but you don't want to have the proper tools to do it? Why?
well I don't smoke much anymore and my wife is still iffy on the whole cannabis thing because we still live in christian trump backward state where unconditionally growing = dealing. Not that I don't agree with you, I'm just trying to make my life easier.

Anyways guys thanks for the input. The hydro shop here closes in the weekend so I might go to walmart or somewhere else to find me 35% H2O2.
 

pSi007

Active Member
Anyways guys thanks for the input. The hydro shop here closes in the weekend so I might go to walmart or somewhere else to find me 35% H2O2.
Your res temps are too high, add 1 drop per gallon of standard 3% h2o2, NO MORE. add 5ml per gallon of SM-90. I think your res temps are much higher than 70f, brown and slimy roots are common for temps above 80f. Be careful with the h2o2, it will kill your plants fast without fixing the root slime - it will help a little but nothing like that. Prevent light from leaking in the bucket (#1 rule), and keep temps low (#2 rule).

believe whatever you want but I am not going to lie to you.



3% h2o2 at 1 drop per gallon is fine, anymore and you will kill your plants. H2o2 will not cure your brown-root slime. I have no idea who told you to use 35% purchased at your grow shop. My advice is to close your wallet and look somewhere else. Dealers want you to chuck endless amount of money, pointlessly, in their direction.


http://www.amazon.com/Swan-Hydrogen-Peroxide-Pack-Two/dp/B004Q2GEVW/ref=sr_1_2?ie=UTF8&qid=1393797585&sr=8-2&keywords=hydrogen+peroxide



btw, I taught myself to grow cannabis, it was never difficult to do. I HATE grow-shop owners because I believe those people who listen to the grow-shop owners are too often sold some magic beans which never sprout to land of giants. My advice is, don't trade your cow - keep it.
 

myass

Active Member
I think if I just use 1/10 of amount itll be OK. Why can't h2o2 kill pythium? Thought it hates oxygen. I got 27% from pool store. And apparently I can store it forever unlike 3% ones which are unstable. could you quantify one dtop. I'm thinking to put 5 ml/gal of 27% (conclusion from reading other peoples experience) and let the root soak in it for 1 hr and change the res with nute and add 2 ml/gal for the next 7 days. Yea ur right my problem was temp and lights. My room temp was 70 so I just assume the water was the same temp with air pump injecting the whole time. Will the res temp go higher and what causes it?
 

faller200

Well-Known Member
The slime is like AIDS fairly easy to prevent and nearly impossible to get rid of. I have never been able to stop it after it has set in and I have tried just about everything that people have told me to try and still the slime lived on. If I ever get again i will just toss the whole grow out and start over. I would clean all equipment very very very well and the next time i would use bennies from the start, keep my temps as low as I can and keep my grow area clean like I do now. I don't get the slime anymore.

Keep it clean
Keep res dark
keep it cool
Use bennies
Keep PH in range.

You don't need meters. They don't kill it. You don't need H2O2 that won't kill it. the tea might kill it (never worked for me) There is as far as I'm concerned no magic cure only prevention. You can do what ever you decide Asking the question over and over till you get the answer you want is not the best option
 
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