Hi first grow and im pretty lost with deficiency in seedlings (12days)

[Seros0274]

Hi this is my first grow and im having issues with my first babys so im afraid that they could die by my low info on this so ill leave my set up and you guys could tell me whats wrong

240w led(samsunglmh301) light 45 inches away from em
Temp 28-30c°
Humidity was about 80% i switched today to 60%
Soil: 40%cococoir 30%cocofiber 30% perlite
Nutes: AN sensi grow a+b(not coco), mother earth, calimagic (GH), vodoojuice, b-52
Solution ( 850ppm) (2ml perliter a+b) (1ml per liter mother earth)(1ml per liter calimagic)(1ml per liter vodoo juice)(raw yucca as wetting agent(tip of fingersper gal))(1ml per liter b-52)
Ph: i always try to manage inflow at 5.8 to 6.2 teying to stay ay 6

Fertigation is twice a day when lights on and then 7 hours later coco is never dry and very nice drainage
Also my runoff water is lower in EC (always drops like 300 points down of inflow, also ph of runoff its arpund 6.8 (dunno if that matters)

I leave some photos to i think i have multiple problems like (cal or mag def) (nitrogen toxicity in one and growth stopped days ago) (and another one yellowing)

 

[Seros0274]

And this is my soil...

 

[WintersBones]

I'm not an expert but my 2c is too much nutrients and/or overwatering. I would lower the input PPMs, maybe let it dry out a bit more between watering. Hopefully others will chime in. Best of luck.

 

[CannaCountry]

Going in @ 5.8 and coming out at 6.8 pH....there's something happening here. Did you buffer your coco products before using them?

 

[CapollaLabs]

Geet it flushed Mon

 

[Blindeye]

I agree with the others, let it dry more between waterings pots should be light when ready for water. reduce nute concentration frequency to at least every other watering, in this case I think every 2 waterings plain ph balanced then a watering with nutes then 2 more plain for a few days. 850ppm on babies seems high imo. reduce light height. I have a blurple kings led that pulls 190watts at the wall -1000w- equivalent (yea... right) for veg within 18" of my babies. I grow in soil and use fox farms nutes. Get your ph down to around a 6.

 

[Buttercup666]

Overwatered, could be causing root rotting

 

[Seros0274]

Going in @ 5.8 and coming out at 6.8 pH....there's something happening here. Did you buffer your coco products before using them?

Yes i pre buffered with calimagic but i just noticed the real problem i was miss reading the ppm as ec..... so y was giving them solutions of 1400-1600 ec...

 

[Seros0274]

Also thanks alot guys for reply , the pronlem was that i didnt shifted the ec/pmm in the pen and was giving to much nutrient solution,
I guess im going to flush with plain ph water as blineye says and then start again with low ec water

And for the one that is stunned and super green should i just give it plain water? And what about the other young ones. Thanks for advicing, and im starting with plain water for all

 

[Blindeye]

The super deep green is a sign of high nitrogen. Let it rest and use up some of the foliar N. From my exp, give it bout a week of just water. It should begin to rebound. I stunted 3 auto dwarfs w too much N. Took 2 weeks to begin showing improvements, then another 1.5 weeks to begin growing again, this was in flower too. I almost lost em. Most would've snatched em out and started over. I just couldnt do that lmao

 

[Seros0274]

Update
Hi i flushed them all with RO water and low calMag (since its coco i guess correct me if not)
And since it was the secod fertigation of the day ill let them like that until tomorrow in the morning ill give them plain water until mid day for some low nutes (is this ok?)
And since im flushing the media should i foliar fed em with anything like cal mag? To avoid problems since coco has no nutrients in it ? Thanks ppl

 

[Snob]

Update
Hi i flushed them all with RO water and low calMag (since its coco i guess correct me if not)
And since it was the secod fertigation of the day ill let them like that until tomorrow in the morning ill give them plain water until mid day for some low nutes (is this ok?)
And since im flushing the media should i foliar fed em with anything like cal mag? To avoid problems since coco has no nutrients in it ? Thanks ppl

Dont add anything but PH water when you flush.

 

[Blindeye]

Leaves store nitrogen and use as necessary, that's why in a nitrogen deficiency you'll see the lowest and oldest leaves begin yellowing first as the plant moves it to the growth tips, let em use the available nitro in the leaves. Watch them closely. You'll see the deep green begin to fade to lighter shades, when I see this sign is when I add nutes back to the mix. Any extra N at this stage may lead to nutrient burn and loss of leaves at the minimum. Some nutes are fixed in the plant like calcium, others are mobile like nitrogen. I found a grow bible from "I love growing marijuana " that's pretty good at explaining how the nutes work with pix of different deficiencies. They also have a plant care ebook that's good too. Both can be downloaded to your phone. Check em out I think you'll like.

 

[Seros0274]

Hi i update the plants im feeding with 790 ec the onez with 12 days old (8 plants) the one stunned with N its in a 400ec 6.1 ph until it start to grow again..

Going in @ 5.8 and coming out at 6.8 pH....there's something happening here. Did you buffer your coco products before using them?

and the 4 in half gal pots r getting 970ec and 6.05 ph per fetigation (twice a day drain to waste) but i still with this big problem the runoff ph oh all the pots its around 6.8-7.02 i dont know if i need to fix that or it doesnt matter?

I add some pics of the plants in recovery after my mistake with high ec xd. Thanks for readding

 

[Seros0274]

And im using vodoo juice and mother earth ia this normal.to grow in my coco soil ?

 

[Blindeye]

good numbers for the stunted one she should do good in a few days. Ph has to be fixed. I aim for a 6 in soil. A good range is 5.8-6.2. Some say 6.5. Anything over 7 will be detrimental. Cant absorb nutes properly. Try bringing your fertigation ph down to 5.8, run that a daynor two, and check the runoff each time. It should begin to come down. Once you hit the ph target they should take off like a rocket.

Is that....moss growing?? That's new to me.

 

[Seros0274]

Yea i bought florakleen so im probably flushin with it this week if i cant get that ph runoff down in 2 more days im aiming for 5.9 ph in nutrient solution to lower it but since i dont have ph down i use..... Lime juice xd i hope that doesnt kill the voodo juicie and mamoth in nutrients and yea i dont know why there is moss and intruders in the coco i thin bcoz it says organic the coir and its contaminated with alot of shit but i washed it alot before buffer

 

[Blindeye]

Good deal. The lime juice shouldnt hurt but but I highly recommend getting general hydroponics PH kit. I got one and is damn awesome. The lime will break down pretty quickly. Same with vinegar which I've tried and didnt like. It prolly does have some contaminants in it. Personally I dont think there is any media that's sterile. But I could be wrong. Hell my potting mix had some tiny critters running around in it.