First Indoor Grow: Problem Identification Help

moderngroroom said:
How is your grow going since the advice
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Hey all! Had a lot of work these weeks. So, I decided yo restart the grow.

Now using pure coco (Canna Coco Plus), already buffered. With AN (sensi grow, since a friend gave It to me. Hope It works fine. I'm with the same strain: sweet seeds , speed + auto and all the setup.

I started with a 0.5 EC for the first days but they started burning so I inmediately went down to 0.3. Going with 5.7/6.0 PH, and feeding every Watering (coco) once a day till 10% runoff aprox.

They are yellowing (the new leaves), and i'm worried, also they are weirdly enough strechy, foto the light they have...

Any help is welcome Thanks you all!
 

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moderngroroom said:
Need more info so we can help do the 420
Data log you did with the others strain light medium blah blah blah fill that out
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Medium: Canna Coco Plus
Nutrients: Advanced nutrients sensi coco pH perfecto + additives
Temperature: 24/25C
Plants: 8 days old
Light: 315watt CMH (LEC)
Humidity (60/70%) for seedlings. Now ay 55/60%.
Strain: Speed + Auto, Sweet Seeds

Notes: this is my second atempt with this strain, ive found It is VERY sensitive yo nutrient burn. I'm at 0,2 EC now, and still tips lightly burned.

The light is at 1,1 meters aprox, i'm worried It is too close and the yellowing might be lightburn.

I'm Watering once a day, 20% runoff.
 
Thalia said:
Medium: Canna Coco Plus
Nutrients: Advanced nutrients sensi coco pH perfecto + additives
Temperature: 24/25C
Plants: 8 days old
Light: 315watt CMH (LEC)
Humidity (60/70%) for seedlings. Now ay 55/60%.
Strain: Speed + Auto, Sweet Seeds

Notes: this is my second atempt with this strain, ive found It is VERY sensitive yo nutrient burn. I'm at 0,2 EC now, and still tips lightly burned.

The light is at 1,1 meters aprox, i'm worried It is too close and the yellowing might be lightburn.

I'm Watering once a day, 20% runoff.
Click to expand...

I think your trying to feed to early feed them with cal-mag only till about the late 2nd week then start them on regular nutes after that use disttiled water in your nutes at 250ppm in start from there
 
I use canna terra pro plus, so I can’t help you with the specifics. I assume you know what you are doing with the basics like PH, PPM, circulation, temp, air exchange, etc? Over a meter in veg is about as far away as you can get. I assume this light has a veg switch. They really don’t need or want much of anything other than the very basics. This is all about developing roots.
 
I would't feed them until they start to eat their cotyledon leaves. And then it would be the tiniest amount.
 
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