Guess the problem?! Help with deficiency!

T

thc-a

Member
Hi, my seed has been growing for a couple of weeks now and it’s just starting to show sign of something wrong already, I’ve noticed the lower leaves getting brown spots and browning on the whole leaf and all over the plant the leaves look to be going light green ish in between the veins! The problem is, I can never seem to be able to work out what the deficiencies are from looking at charts and stuff, to me it always looks close to one kind of deficiency but so close to another so I have no clue! This is my third try at doing this now and both of my other two plants have died once they got to the size of a football ish(low stress trained to keep them small but bushy). Now, I’m using all the exact same stuff(I’ll list what I use further down) as my other tries but before I didn’t come across any problems until about 6weeks in(I have to veg them for so much longer than anyone else’s plants I’ve seen to get them the same size, I think down to the fact I’m clearly doing something wrong. My first try had to veg for 3months to get to the football size and then it died which devastated me so I tried again and pretty much the same thing happened). It probably sounds like I have no clue about how to do this, but I’ve read hours and hours worth of material about how plants works(not just MJ but plants in general too to get a better picture of plants in general) and I’ve consumed weeks and weeks worth of YouTube/forum material but still to no avail :/.
Right...

Ph of the water(tap water that’s been sat for 24 hours before watering to the chlorine evaporates abit) is always between 6.4-6.9.
Canna terra plus soil with lots of added pearlite, especially around the bottom of the pot.
I haven’t added any nutes yet as it’s still to young in my eyes but when I do it will be biobiz organic veg.
My lights are 3 x 45w 2700k cfl, 2 x 23w 6500k cfl and one diy led 50w Cree 2700k.
Temps seem to be between 23-27c during the plants day and then 16-19c in its night time(I know that’s a fraction too low for night but I’m really struggling to find a way to get it higher).
I have a ppm meter but I’m not really sure what the ppm of my plant should be(I have only just got it for this time so I’ve not read up on them just yet, it’s about the only thing I haven’t!
If I’ve missed anything you need to know please ask as I really don’t want a third one to be a waste of time again as I’m really trying here and getting kicked in the teeth every time, the worst part is I actually find enjoyment in the growing and looking after it, it’s not just about the end product for me(obviously it plays a big part but still ;))
Any and all help majorly appreciated!! Thanks
 

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Beachwalker

Well-Known Member
Bro your pH is too high for starters, sounds like you're locking something out, keep your water 6.3-6.6 ..you got to get the tools, even a cheap yellow meter will work if you don't mind calibrating it after every dip.

I don't know your soil, I'm sure somebody else will, plus without my glasses I had trouble reading through without paragraphs but your pH was a big stick out to me, and consistent with the symptoms you've described.
-good luck
 
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thumper60

thumper60

Well-Known Member
thc-a said:
Hi, my seed has been growing for a couple of weeks now and it’s just starting to show sign of something wrong already, I’ve noticed the lower leaves getting brown spots and browning on the whole leaf and all over the plant the leaves look to be going light green ish in between the veins! The problem is, I can never seem to be able to work out what the deficiencies are from looking at charts and stuff, to me it always looks close to one kind of deficiency but so close to another so I have no clue! This is my third try at doing this now and both of my other two plants have died once they got to the size of a football ish(low stress trained to keep them small but bushy). Now, I’m using all the exact same stuff(I’ll list what I use further down) as my other tries but before I didn’t come across any problems until about 6weeks in(I have to veg them for so much longer than anyone else’s plants I’ve seen to get them the same size, I think down to the fact I’m clearly doing something wrong. My first try had to veg for 3months to get to the football size and then it died which devastated me so I tried again and pretty much the same thing happened). It probably sounds like I have no clue about how to do this, but I’ve read hours and hours worth of material about how plants works(not just MJ but plants in general too to get a better picture of plants in general) and I’ve consumed weeks and weeks worth of YouTube/forum material but still to no avail :/.
Right...

Ph of the water(tap water that’s been sat for 24 hours before watering to the chlorine evaporates abit) is always between 6.4-6.9.
Canna terra plus soil with lots of added pearlite, especially around the bottom of the pot.
I haven’t added any nutes yet as it’s still to young in my eyes but when I do it will be biobiz organic veg.
My lights are 3 x 45w 2700k cfl, 2 x 23w 6500k cfl and one diy led 50w Cree 2700k.
Temps seem to be between 23-27c during the plants day and then 16-19c in its night time(I know that’s a fraction too low for night but I’m really struggling to find a way to get it higher).
I have a ppm meter but I’m not really sure what the ppm of my plant should be(I have only just got it for this time so I’ve not read up on them just yet, it’s about the only thing I haven’t!
If I’ve missed anything you need to know please ask as I really don’t want a third one to be a waste of time again as I’m really trying here and getting kicked in the teeth every time, the worst part is I actually find enjoyment in the growing and looking after it, it’s not just about the end product for me(obviously it plays a big part but still ;))
Any and all help majorly appreciated!! Thanks
Click to expand...
#1 repot an feed
 
T

thc-a

Member
I’m not good with writing mate sorry I know it was a strain on the eyes lol. Oh right I’d always read that 6.3-6.6 was for hydro and soil is supposed to be 6.5-6.8. I do have a ph meter(one of the cheap yellow ones you described, although I admit it’s only calibrated every 4 waters), that’s how I know my ph is always between 6.4 and 6.8, I vary it so it can uptake nutrients each end of the spectrum. I will start PH’ing down to your suggestion on my next water, hopefully this will resolve my issue.
I will also re-pot and feed when I do this.
Thanks for both your suggestions too!
 
ClassicT

ClassicT

Active Member
Looks like a watering problem to me. Young seedlings like very even, consistent moisture. Never soaking, never dry. Also looks like it needs a bigger pot. Don’t go too big though, a lot of medium with not enough roots can keep things too wet.
 
ClassicT

ClassicT

Active Member
Also, I wouldn’t worry too much about feeding until the baby plant looks healthier and starts growing normally. Also, what’s your RH? Young plants like pretty high humidity, like 70 - 75%. Climate can cause a lot of issues if it’s not on point.
 
QuikWay

QuikWay

Well-Known Member
I vote its time to re-pot. i also vote its a watering problem/too much/not enough drainage/not enough space for the roots anymore.
 
B

Beachwalker

Well-Known Member
thc-a said:
I’m not good with writing mate sorry I know it was a strain on the eyes lol. Oh right I’d always read that 6.3-6.6 was for hydro and soil is supposed to be 6.5-6.8. I do have a ph meter(one of the cheap yellow ones you described, although I admit it’s only calibrated every 4 waters), that’s how I know my ph is always between 6.4 and 6.8, I vary it so it can uptake nutrients each end of the spectrum. I will start PH’ing down to your suggestion on my next water, hopefully this will resolve my issue.
I will also re-pot and feed when I do this.
Thanks for both your suggestions too!
Click to expand...
Not really high but you're going to be happier living between let's say 6.3 and 6.6, also everybody seems to think time to repot so probably a good idea, wasn't really complaining about the paragraphs, I've some eye issues going on, sometimes the long paragraphs don't let me get through them! :shock:
-good luck
 
T

Tim1987

Well-Known Member
ClassicT said:
Looks like a watering problem to me. Young seedlings like very even, consistent moisture. Never soaking, never dry. Also looks like it needs a bigger pot. Don’t go too big though, a lot of medium with not enough roots can keep things too wet.
Click to expand...
QuikWay said:
I vote its time to re-pot. i also vote its a watering problem/too much/not enough drainage/not enough space for the roots anymore.
Click to expand...
thumper60 said:
#1 repot an feed
Click to expand...
These
All day.

IMHO just water when you transplant. But water it right, right in.
 
lee1000

lee1000

Well-Known Member
Awww the poor little things :shock:

After a lot of thought about how you have always had these problems, it would seem that your water may be the culprit, regardless of your Ph. I would suggest getting an osmosis kit.

Also, where did you get your seeds from?
 
SPLFreak808

SPLFreak808

Well-Known Member
I agree with up-potting asap, a pot that small under 200w+ of lighting isnt helping.

A consistent 6.5-6.9 also seems a bit high for soiless no?
 
Cx2H

Cx2H

Well-Known Member
thc-a said:
Hi, my seed has been growing for a couple of weeks now and it’s just starting to show sign of something wrong already, I’ve noticed the lower leaves getting brown spots and browning on the whole leaf and all over the plant the leaves look to be going light green ish in between the veins! The problem is, I can never seem to be able to work out what the deficiencies are from looking at charts and stuff, to me it always looks close to one kind of deficiency but so close to another so I have no clue! This is my third try at doing this now and both of my other two plants have died once they got to the size of a football ish(low stress trained to keep them small but bushy). Now, I’m using all the exact same stuff(I’ll list what I use further down) as my other tries but before I didn’t come across any problems until about 6weeks in(I have to veg them for so much longer than anyone else’s plants I’ve seen to get them the same size, I think down to the fact I’m clearly doing something wrong. My first try had to veg for 3months to get to the football size and then it died which devastated me so I tried again and pretty much the same thing happened). It probably sounds like I have no clue about how to do this, but I’ve read hours and hours worth of material about how plants works(not just MJ but plants in general too to get a better picture of plants in general) and I’ve consumed weeks and weeks worth of YouTube/forum material but still to no avail :/.
Right...

Ph of the water(tap water that’s been sat for 24 hours before watering to the chlorine evaporates abit) is always between 6.4-6.9.
Canna terra plus soil with lots of added pearlite, especially around the bottom of the pot.
I haven’t added any nutes yet as it’s still to young in my eyes but when I do it will be biobiz organic veg.
My lights are 3 x 45w 2700k cfl, 2 x 23w 6500k cfl and one diy led 50w Cree 2700k.
Temps seem to be between 23-27c during the plants day and then 16-19c in its night time(I know that’s a fraction too low for night but I’m really struggling to find a way to get it higher).
I have a ppm meter but I’m not really sure what the ppm of my plant should be(I have only just got it for this time so I’ve not read up on them just yet, it’s about the only thing I haven’t!
If I’ve missed anything you need to know please ask as I really don’t want a third one to be a waste of time again as I’m really trying here and getting kicked in the teeth every time, the worst part is I actually find enjoyment in the growing and looking after it, it’s not just about the end product for me(obviously it plays a big part but still ;))
Any and all help majorly appreciated!! Thanks
Click to expand...
5.8-6.2 pH is your zone in soil-less.

1. "Advantages of CANNA Terra Professional Plus
  • Exclusive, high grade ingredients such as airy peat moss and different types of tree bark (as a substitute for perlite) are components of CANNA Terra Professional Plus. They have an antiseptic effect and increase aeration qualities. This has a direct result in promoting exceptional root development and formation of thicker stems.
  • CANNA Terra Professional Plus is enriched with special feeding mixes, containing all the elements plants need during their first week, meaning no additional feeding is needed at that time!
  • The medium is also pH-adjusted for long-term control with a lime charge large enough to last an entire cycle.
  • It has a mineral-nutrient starter charge that adjusts the initial level of nutrients up to a good beginning charge, correcting the ratios to work perfectly with CANNA TERRA nutrients."
2. "What is pH?
So, let’s start at the beginning. pH is the measure of the acidity or alkalinity of a given substance. Technically it is about the concentration of hydrogen ions.

A pH of 7.0 is totally neutral, 1.0 to 6.9 is acidic and 7.1 to 14.0 is alkaline.

When using a pH scale it is important to know that the decimal points really count. The pH scale is a logarithmic scale which means that for every one point of pH, the concentration changes by a factor of ten.

For example, an increase in pH from 7.0 to 8.0 is actually a tenfold increase, so be aware"


3. "The optimum pH for marijuana in soil is around 6.0 – 6.8"

4. Magnesium is your friend.

5. Never trust the manufacturer suggestions.

6. Magnesium is your friend...

7. Pots are too small and fuxing you good, unless you are doing the solo cup challenge.

8. Magnesium is your friend....

9. Cheap yellow meters work better than 90$ pens

10. Enjoy the grow and don't over love the plants to death.

Short answer: feed them.


;-)
 
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T

thc-a

Member
Wow ok, so firstly I wasn’t sure wether the preferred method of reply to everyone would be to press reply to each individual post or write it all out in one as there’s so many, so my apologies.

Right, I’ve re-potted, trying to be careful I didn’t go too big and gave it a nice watering for it to settle into it’s new pot.

I did include nutritients but at 1/7th the recommendation of the label as some said not to feed but then in the last post in the bit about my soil it says that it has nutrients for the first week so hence me coming to a compromise just to try it, hopefully way to weak to hurt it!

I PH’d to 6.3 as most suggestions seem to be around that area.

My RH fluctuates between 35/50, I keep trying the whole tub of water and a fan blowing on it. Ive also tried a wet sponge and rag and it doesn’t seem to raise it. But then I’ve seen so many posts in forums saying they’ve grown in 25/35 RH their whole grow cycle as they couldn’t lower it and they had no problems(I understand this goes against the actual scientific facts though). I think I’m just going to have to buy a humidifier as soon as I can by the looks of the information provided here!

Also magnesium seems to be my friend ;) Would I be able to use the food grade Epsom salts I have for that, as I understand that it’s made of magnesium and sulphur I think. I know sulphur is beneficial too as I’ve read it makes up parts of the plants proteins. Any thoughts?

Hopefully I’ve not missed answering anyone. Cheers again for all the responses as of yet.

I’ll probably post a pic of her in the new pot later too.
 
T

thc-a

Member
Pic taken today, so it’s had a day or two to decide if it’s going to start perking up, no additional brown spots I don’t think, but the light green effect in between veins is still there.

I think it ‘may’ be growing a little faster but by eye without measuring it’s pretty hard to tell!
 

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Cx2H

Cx2H

Well-Known Member
thc-a said:
Pic taken today, so it’s had a day or two to decide if it’s going to start perking up, no additional brown spots I don’t think, but the light green effect in between veins is still there.

I think it ‘may’ be growing a little faster but by eye without measuring it’s pretty hard to tell!
Click to expand...
Greetings, gonna take atleast a week for it to turn around. Watch new growth, the old is toast. Magnesium my friend. :-)
 
Bernie420

Bernie420

Well-Known Member
I was just gunna post and ask if you feed it any nutes yet without even reading your long post. So before I did that I read up to havent fed it anything yet, just to check if i was right and low and behold havent fed it anything yet who would of thunk that. Let me guess no microbes in that bitch either, am i right.
 
T

thc-a

Member
lee1000 said:
Awww the poor little things :shock:

After a lot of thought about how you have always had these problems, it would seem that your water may be the culprit, regardless of your Ph. I would suggest getting an osmosis kit.

Also, where did you get your seeds from?
Click to expand...
Sorry mate, missed this. I’ve just been looking and seen RO kits on eBay for like £50/£100, these look pretty decent.. might take me a while to be able to chuck the cash at it though lol!

Seeds are from barneys... don’t even get me started with them, my whole purchasing experience was absolutely appalling with me being left shafted!
 
T

thc-a

Member
Bernie420 said:
I was just gunna post and ask if you feed it any nutes yet without even reading your long post. So before I did that I read up to havent fed it anything yet, just to check if i was right and low and behold havent fed it anything yet who would of thunk that. Let me guess no microbes in that bitch either, am i right.
Click to expand...
Yeah, I think it’s looking a little better from a feed tbf mate!
 
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