Seedlings - is this young hunger or something more sinister?

jackinthegreen

jackinthegreen

New Member
Hey All,

Im just back to growing after a time off, using Coco, canna nutrients, 450w Mars Hydro LED.
2 Blue Dream & 2 Super lemon Haze. Popped above ground 11/13 days ago. Have resisted the urge to nute until i noticed the following yesterday.

The boys are getting a more faded yellow colour; for example i have a seperate seed that i popped 5 days after the rest had germ'd and this one still has its darker, more lime green colouring, but the 4 main puppies are a little faded, and have gotten some very mild (at this point) purpling throughout the leaves, and around the edges (some good pics attached)
Waters PH has been the high end of 6.9 even up to 7.1 until i added nutes yesterday which brought it to 6-6.1.
So...
Any opinions on conditions in the pictures attached? are they caused by any of the following:

1) lack of nutes? - have they used up all their energy and nutes and can't draw anything from the barren oasis of the coco medium?

2) high water? PH. 7 is what I've been reading so far, couldn't get to buy PH down as of yet, so just sucked it up and watered them with a little higher PH water (something tells me this isn't the cause though) watered with nuted 6.0 water this morning.

3) or could it environmental? Something to do with the heat/light in the tent? I have a can fan running extraction, good air intake, temp is hovering around 30degrees, and humidity since i removed seedling dome is about 40-60%


As always any help, constructive feedback before wondering off topic would be greatly appreciated.

Thanks all,
 

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cian07

cian07

Active Member
I have never seen anything like that in seedlings before, they probably wont survive man...Pull em before they die and start over
 
jackinthegreen

jackinthegreen

New Member
PH sounds about right, although the coco is canna and says its good to go out of the bag, nothing else needed. Thanks for the input
 
ZoBudd

ZoBudd

Well-Known Member
jackinthegreen said:
Hey All,

Im just back to growing after a time off, using Coco, canna nutrients, 450w Mars Hydro LED.
2 Blue Dream & 2 Super lemon Haze. Popped above ground 11/13 days ago. Have resisted the urge to nute until i noticed the following yesterday.

The boys are getting a more faded yellow colour; for example i have a seperate seed that i popped 5 days after the rest had germ'd and this one still has its darker, more lime green colouring, but the 4 main puppies are a little faded, and have gotten some very mild (at this point) purpling throughout the leaves, and around the edges (some good pics attached)
Waters PH has been the high end of 6.9 even up to 7.1 until i added nutes yesterday which brought it to 6-6.1.
So...
Any opinions on conditions in the pictures attached? are they caused by any of the following:

1) lack of nutes? - have they used up all their energy and nutes and can't draw anything from the barren oasis of the coco medium?

2) high water? PH. 7 is what I've been reading so far, couldn't get to buy PH down as of yet, so just sucked it up and watered them with a little higher PH water (something tells me this isn't the cause though) watered with nuted 6.0 water this morning.

3) or could it environmental? Something to do with the heat/light in the tent? I have a can fan running extraction, good air intake, temp is hovering around 30degrees, and humidity since i removed seedling dome is about 40-60%


As always any help, constructive feedback before wondering off topic would be greatly appreciated.

Thanks all,
Click to expand...
That purpling could be a phosphorus def. Look here:
http://www.growweedeasy.com/phosphorus-deficiency-cannabis

A common "symptom" of a cannabis phosphorus deficiency is red or purple stems. It's important to remember that some cannabis strains naturally grow with red or purple stems even when all their nutrient needs are being fulfilled, so red or purple stems is not a symptom to worry about on its own.

Do not mistake natural reddish-purple colored stems for a phosphorous deficiency!

When you notice that stems are turning red or purple starting from underneath, it may be a sign of a phosphorus deficiency only if accompanied by other symptoms. If the only symptom shown by your plant is red or purple stems, and you are not seeing any other signs of splotches or unhealthy leaves, the red or purple stems are likely caused by the genetics of your plant. If that's the case, you have nothing to worry about.
 
Michiganjesse

Michiganjesse

Well-Known Member
jackinthegreen said:
Hey All,

Im just back to growing after a time off, using Coco, canna nutrients, 450w Mars Hydro LED.
2 Blue Dream & 2 Super lemon Haze. Popped above ground 11/13 days ago. Have resisted the urge to nute until i noticed the following yesterday.

The boys are getting a more faded yellow colour; for example i have a seperate seed that i popped 5 days after the rest had germ'd and this one still has its darker, more lime green colouring, but the 4 main puppies are a little faded, and have gotten some very mild (at this point) purpling throughout the leaves, and around the edges (some good pics attached)
Waters PH has been the high end of 6.9 even up to 7.1 until i added nutes yesterday which brought it to 6-6.1.
So...
Any opinions on conditions in the pictures attached? are they caused by any of the following:

1) lack of nutes? - have they used up all their energy and nutes and can't draw anything from the barren oasis of the coco medium?

2) high water? PH. 7 is what I've been reading so far, couldn't get to buy PH down as of yet, so just sucked it up and watered them with a little higher PH water (something tells me this isn't the cause though) watered with nuted 6.0 water this morning.

3) or could it environmental? Something to do with the heat/light in the tent? I have a can fan running extraction, good air intake, temp is hovering around 30degrees, and humidity since i removed seedling dome is about 40-60%


As always any help, constructive feedback before wondering off topic would be greatly appreciated.

Thanks all,
Click to expand...
I have the same problem and I'm in super soil
 
lio lacidem

lio lacidem

Well-Known Member
cian07 said:
I have never seen anything like that in seedlings before, they probably wont survive man...Pull em before they die and start over
Click to expand...
Absolutely dont listen to this advice. Probably a slight ph issue but other then that ok. I usually dont feed nutes until cotyledons start to yellow out.
 
kitten49

kitten49

Active Member
cian07 said:
I have never seen anything like that in seedlings before, they probably wont survive man...Pull em before they die and start over
Click to expand...
It's still a nice green just because you never seen it don't mean there dying that be kinda dumb to pull a plant just because you never seen it before lol
 
kitten49

kitten49

Active Member
So I looked up something and most ppl say it's from being to cold try raisin your temps a bit see if it helps any
 
Buzzard Beek

Buzzard Beek

Member
kitten49 said:
So I looked up something and most ppl say it's from being to cold try raisin your temps a bit see if it helps any
Click to expand...
Exactly most of your purplish color comes from low temperature usually dropping in the 60s will do it make sure you temps are staying at least 72 degrees
 
R

roachfinder

Well-Known Member
jackinthegreen said:
errrr, i think ill wait, but thanks for the advice :)
Click to expand...
The same exact thing happened to me. Led grow....coco coir and soil mix. My seedlings looked the same. They grew very slow and turned more purple. I think it was too much calcium and salt which caused a phosphorus def. I flushed and then added overdrive from a.n (for p-k values)
With a lil base nuts and they did fine
 
jackinthegreen

jackinthegreen

New Member
roachfinder said:
The same exact thing happened to me. Led grow....coco coir and soil mix. My seedlings looked the same. They grew very slow and turned more purple. I think it was too much calcium and salt which caused a phosphorus def. I flushed and then added overdrive from a.n (for p-k values)
With a lil base nuts and they did fine
Click to expand...
For some reason i agreed with you in my gut....i left them to dry out, havent watered for days and they have grown new node and got some healthier colour back... thank you for your advice :)
 
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