problems with my 18 day old plants! Please help

Stblazed · Jan 4, 2018

I really need help!
First time grow and I've had it hard already.
I'm growing 4 sensi skunk fems in coco and perlite using canna a and b and rhizotonic using a 600w marshydro LED (245 actual watt).

Stupidly at day 10 I gave them some nutes and burnt all of them at the same time I found out my PH pen was fucked and was 1PH to high so was feeding at 6.8PH (only for 2 waterings).
Thankfully they recovered and started to grow again...slowly...and the new growth Looked healthy.
I gave them a feed 2 days ago of 1/4 strength nutes and PHed water at 5.8 PPM at 350 I watered to run off the run off water was 6PH and 495PPM.

I know they're small for their age due to burning them and slowing down their growth but today they look ill! Out side of the leaves are turning up and they seem to be going a bit yellow!
Temps are perfect 25C lights on 22C lights off RH is between 50%-70% and have a carbon filter that runs 4 hours a day.

Can someone tell me what this is?!?! And how to fix them or do I just throw them away and start again!

dtl420 · Jan 4, 2018

First, we'll need a picture where they don't just look blurple. take one with more natural lighting. And second, you're still feeding too early! Wait till the cotyledons yellow/whither, that's when it's hungry. Anything other than water and myco's before that does more harm than good.

Stblazed · Jan 4, 2018

dtl420 said:
First, we'll need a picture where they don't just look blurple. take one with more natural lighting. And second, you're still feeding too early! Wait till the cotyledons yellow/whither, that's when it's hungry. Anything other than water and myco's before that does more harm than good.

I can't they're in the attic lights off it's pitch black lights on it's blurple. They have gone yellow and fallen off but don't know if that's from burn or because they're hungry. Do you really think at 18 days in coco it's to early for nutes?

dtl420 · Jan 4, 2018

usually, yes. If they faded to yellow then withered, it's probably ready for food. It's really hard to say without a better picture. And just so you know, you won't hurt them by flipping on a lamp just to snap a picture. No one will be able to effectively help you if the only pictures you can get are with the grow lights on. Every grower, especially those with the blurple led's should have a lamp or one of those cheap clip on/plug in fixtures to see the ladies in the natural light. Even in person you can't really see the color of the leafs with grow light lighting.

drewby · Jan 4, 2018

In future try to snap photos with your led off it makes it hard to see color of the plants ,,if they are yellowing could be from to much much water ,,you said you burnt them,,in the future if you think you have given too much feed and they may burn use some extra straight water,and flush them a bit it will get rid of extra nutrients and reduce some of the burn,,but when you flush like that you may see some yellowing from washing out the soil in that manner,yellow or light green would normally mean they have recently been flushed ,,or are in need of Nitrogen,,Nitro will have everything to do with the green color of your plants ,,N uptake helps the plant make chlorophyll which is what makes the green color not enough will result in a light or lime green ,color,,Not sure what you are feeding for nutrients but ,,I use as close to a 7-5-5 as I can in vegg think I am using a 5-3-3 right now was best I could do,,I grow in soil,I build my own soil as close to a 7 on ph as I can or close 7 is neutral ph,,I would not throw your plants out,,This is your first run so let it be your first,try not to overthink it,,the plants will come along,,I generally start mine in jiffy pellets than move them to solo cups ,than to 5 gallon buckets ,or 10 gallon containers for my small indoor ,take a few more pictures if you can with no led on,I will take a better look and try to help you out some,,every grow can be a learning curve so do not get disheartened ,they will come along

dtl420 · Jan 4, 2018

How high do you have your light above the tops?

dtl420 · Jan 4, 2018

drewby said:
In future try to snap photos with your led off it makes it hard to see color of the plants ,,if they are yellowing could be from to much much water ,,you said you burnt them,,in the future if you think you have given too much feed and they may burn use some extra straight water,and flush them a bit it will get rid of extra nutrients and reduce some of the burn,,but when you flush like that you may see some yellowing from washing out the soil in that manner,yellow or light green would normally mean they have recently been flushed ,,or are in need of Nitrogen,,Nitro will have everything to do with the green color of your plants ,,N uptake helps the plant make chlorophyll which is what makes the green color not enough will result in a light or lime green ,color,,Not sure what you are feeding for nutrients but ,,I use as close to a 7-5-5 as I can in vegg think I am using a 5-3-3 right now was best I could do,,I grow in soil,I build my own soil as close to a 7 on ph as I can or close 7 is neutral ph,,I would not throw your plants out,,This is your first run so let it be your first,try not to overthink it,,the plants will come along,,I generally start mine in jiffy pellets than move them to solo cups ,than to 5 gallon buckets ,or 10 gallon containers for my small indoor ,take a few more pictures if you can with no led on,I will take a better look and try to help you out some,,every grow can be a learning curve so do not get disheartened ,they will come along

Nitrogen is not solely responsible, many deficiencies cause chlorosis.. Magnesium and iron just to name a few. The blotchy/overall yellowing is due to low light or low nitrogen, if the veins stay green it's mag. Both affect the lower leafs, as they are mobile nutrients, and get mistaken for one another often.

Stblazed · Jan 4, 2018

drewby said:
In future try to snap photos with your led off it makes it hard to see color of the plants ,,if they are yellowing could be from to much much water ,,you said you burnt them,,in the future if you think you have given too much feed and they may burn use some extra straight water,and flush them a bit it will get rid of extra nutrients and reduce some of the burn,,but when you flush like that you may see some yellowing from washing out the soil in that manner,yellow or light green would normally mean they have recently been flushed ,,or are in need of Nitrogen,,Nitro will have everything to do with the green color of your plants ,,N uptake helps the plant make chlorophyll which is what makes the green color not enough will result in a light or lime green ,color,,Not sure what you are feeding for nutrients but ,,I use as close to a 7-5-5 as I can in vegg think I am using a 5-3-3 right now was best I could do,,I grow in soil,I build my own soil as close to a 7 on ph as I can or close 7 is neutral ph,,I would not throw your plants out,,This is your first run so let it be your first,try not to overthink it,,the plants will come along,,I generally start wmine in jiffy pellets than move them to solo cups ,than to 5 gallon buckets ,or 10 gallon containers for my small indoor ,take a few more pictures if you can with no led on,I will take a better look and try to help you out some,,every grow can be a learning curve so do not get disheartened ,they will come along

Thanks

I will try get some better pics tomorrow

dtl420 said:
How high do you have your light above the tops?

light is about 24" above. It's weird some days they look extremely healthy and some days they look like they're dying...they smell really strong which has to be a good sign?

drewby · Jan 4, 2018

Nitrogen is not solely responsible, many deficiencies cause chlorosis.. Magnesium and iron just to name a few. The blotchy/overall yellowing is due to low light or low nitrogen, if the veins stay green it's mag. Both affect the lower leafs, as they are mobile nutrients, and get mistaken for one another

His plants are 18 days old they should not be suffering too many deficiencies,,even with his pictures ,you can see the center of the leaf is darker green the outer edges seem to be a much lighter color,he needs Nitrogen,,and yes there may be deficiencies that can mimic to a degree,The Info i passed on is solid,as Nitrogen uptake will dictate how green the plant is or isn't,as Chlorophyll is what makes the plant green ,the color of the green will dictate how much light the plant can absorb darker the color the more light absorption will occur ,,Nitrogen is so vital because it is a major component of chlorophyll and the production of, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (i.e., photosynthesis). It is also a major component of amino acids, the building blocks of proteins.,& will dictate color of the plant,,,I will add in later stages especially during rapid growth anytime you become deficient ,on one you will likely be deficient on Cal -mag- maybe even iron,,,But at 18 days on brand new plants 3-6 inches tall,generally not a issue,,,,chlorophyll is the abundant green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis for plants,,,So moving the light closer will increase light penetration which is good,never a bad thing if you are working with a low level lighting,but will do nothing to increase the Nitrogen level which will make the plants ability to be green and absorb the light present,,

chemphlegm · Jan 4, 2018

I had 100% success but not before I read my first grow bible. how long will you wait until you read yours?
I had to pay for mine. here's a bone http://catnews.org/FREE Pot Books/

Stblazed · Jan 4, 2018

drewby said:
Nitrogen is not solely responsible, many deficiencies cause chlorosis.. Magnesium and iron just to name a few. The blotchy/overall yellowing is due to low light or low nitrogen, if the veins stay green it's mag. Both affect the lower leafs, as they are mobile nutrients, and get mistaken for one another

His plants are 18 days old they should not be suffering too many deficiencies,,even with his pictures ,you can see the center of the leaf is darker green the outer edges seem to be a much lighter color,he needs Nitrogen,,and yes there may be deficiencies that can mimic to a degree,The Info i passed on is solid,as Nitrogen uptake will dictate how green the plant is or isn't,as Chlorophyll is what makes the plant green ,the color of the green will dictate how much light the plant can absorb darker the color the more light absorption will occur ,,Nitrogen is so vital because it is a major component of chlorophyll and the production of, the compound by which plants use sunlight energy to produce sugars from water and carbon dioxide (i.e., photosynthesis). It is also a major component of amino acids, the building blocks of proteins.,& will dictate color of the plant,,,I will add in later stages especially during rapid growth anytime you become deficient ,on one you will likely be deficient on Cal -mag- maybe even iron,,,But at 18 days on brand new plants 3-6 inches tall,generally not a issue,,,,chlorophyll is the abundant green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis for plants,,,So moving the light closer will increase light penetration which is good,never a bad thing if you are working with a low level lighting,but will do nothing to increase the Nitrogen level which will make the plants ability to be green and absorb the light present,,

Thanks for the response what you say makes perfect sense!
could the wrong PH early on have locked out nitrogen intake?
How do I increase nitrogen? The lighting is good enough for them now I also have a COB LED which I'll put in a bit further into veg but right now it's to powerful for the size.

Stblazed · Jan 4, 2018

chemphlegm said:
I had 100% success but not before I read my first grow bible. how long will you wait until you read yours?
I had to pay for mine. here's a bone http://catnews.org/FREE Pot Books/

I read no end of stuff but the opinions vary so much from each book that you don't know what to believe especially with coco

chemphlegm · Jan 4, 2018

Stblazed said:
I read no end of stuff but the opinions vary so much from each book that you don't know what to believe especially with coco

the coco is not your issue.
the fact that you consider throwing them away is all telling.
they dont look too bad, and will improve as your feeding/watering skills do.

it only takes one book, try ed rosenthal=real facts
including how not to burn young seedlings.

Stblazed · Jan 4, 2018

chemphlegm said:
the coco is not your issue.
the fact that you consider throwing them away is all telling.
they dont look too bad, and will improve as your feeding/watering skills do.

it only takes one book, try ed rosenthal=real facts
including how not to burn young seedlings.

I know the coco isn't the issue it was me but with out mistakes I'll never learn I guess. I just dropped the lights down 10" hopefully that helps.
Will keep you posted....I'm off to read a grow bible

drewby · Jan 4, 2018

I do not ph my water,I start with my soil I have never had a need,,That is just my opinion,some swear by it some say you have to some say you don't I never have been growing outdoors since I was in my teens I had to go indoor for privacy,But what works for one may not have the same exact results,& so many books and and everybody swears by their own method,you will have to find what works best for you ,I run a low budget grow,I use T8 fluorescents ,full spectrum bulbs,,I have had people tell me you can't even grow with them ,well I do pretty darn good with them I have 2 400 watt MH lights I run in flower,,I use store bought pennington pro soil mixed with black cow and sand ,,My nutrients can be found at any walmart as can the lights I use for 11 bucks a pop,,,This plant is just as it said a weed,It should grow pretty easy in most conditions which is why I said don't overthink it,,will add a few pictures of my plants I have 11 leaves on my sativas and indicas,I have never used a grow bible but grew up around farms and farming so had some general knowledge on plants ,,These plants were started Nov 7th transplanted them out of cups after 3 weeks

chemphlegm · Jan 4, 2018

it aint the lights either

drewby · Jan 4, 2018

here are a few more pics the last ones will be current they are almost 2 months old,you can see in the room I had different color greens until they all got dialed in ,some may need a bit more of one thing or another along the way,but you get use to what it may look like,& what they need that is why I said you will learn as you grow and you encounter different things,,last pictures are current pictures,,but all in all is just a plant so don't overthink it,and some will grow faster than others,but as you can see I have stalks as fat as a king sized sharpie which is about as thinck as a thumb,your plants will come on and grow ,,& many here can help along the way if you run into trouble with anything many growers with XP around here

Stblazed · Jan 4, 2018

chemphlegm said:
it aint the lights either

I know it's not the lights....the other guy said to drop the lights!
I assume I burnt the roots with wrong PH or some kind of lock out...

chemphlegm · Jan 4, 2018

Stblazed said:
I know it's not the lights....the other guy said to drop the lights!
I assume I burnt the roots with wrong PH or some kind of lock out...

I'd continue to feed lightly, buy some calibration fluid and check your pen every time.
stick with a nutrient system and relax.
ever notice all the issues growing in coco around here?
gotta give it up for the troopers staring these failures in the face and daring them once again.

MickFoster · Jan 4, 2018

Stblazed said:
Do you really think at 18 days in coco it's to early for nutes?

Plants in coco should be fed every day to run off and pH'd to around 6.0. I feed my plants daily from the day they sprout and twice a day in flower.

problems with my 18 day old plants! Please help

What do i do?

Throw them away?

Keep going even if it takes 2 years?

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