7 day old seedling yellowing and slow growth?

[ibz]

Hi I'm growing HBSS first time grow ever
In a 10L pot in coco under 250 MH
I gave an initial feed 250ml of ec 0.6 (background ec 0.3) GH micro + bloom and some cal mag about 4 days ago and seen some slight yellowing from centre as follows

Then 2 days ago I gave same feed but as my coco is drying out almost daily I upped to 500ml yesterday I checked and they seem more yellow from centre and also growth seems slow for day 7 from sprout got AF compared to others
RH is 40% temps 72F
Ph on the feed was 6.8
Confused as its my first time

 

[ibz]

Here's second pic of more yellowing and almost no growth in 30 hours

 

[ibz]

Feed it Man it needs Nutes !

your ph is high if it's 6.8 as posted not 5.8. could be locked out ? i dont know ec but i do full nutes in virgin media and you will need cal mag soon for coco. but i am noob so do what you like.

So should I give a feed now with higher ec at 5-6 ph? Or should I flush out first? And should I drop calmag as it maybe too soon?

 

[Dr. Babnik]

I have the same situation. Strange, coz my soil mix should be rich in nutrients.
I fed my yellow seedling some nettle brew 2 days ago. I haven't done my morning worknin the garden yet, so I don't know how she looks yet. If still yellow, I'll give her a little water with 1/5 conc. Sensi Grow and 3,5 g 'MgSO4.

Don't hold Mg back. The energy metabolism is totally dependent on Mg ions. I feed Mg from various sourced at almost every during the plants life. Seldom they get pH'ed water only. I alternately feed base nutes and minerals.

 

[ibz]

Ok so do you think the yellowing is due to nute deficiency and maybe high PH? Will feeding at correct PH without runoff (as roots are not established yet) sort that out?


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[ibz]

feed to run off with proper ph

Will feeding to run off be ok as I don't want to overwater my still growing roots

 

[ibz]

Dont like it rep it. it's all good info full nutes micro+bloom and cal mag to flush just looked it up

"6ml of Flora Micro, and 9ml of Flora Bloom, per gallon of water" lucas for coco this will grow you P I M P plants

6/9 from week 1??


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[MedGrower]

Check the soil pH. Seedling that young cannot be deficient on anything really if you have even slightest amount of nutes in the soil already. It is normal for young leaves to sometimes appear a bit pale at start. Do not sweat it.

It may appear slow growth at 7 days but I guarantee that baby is working with rootzone and will get in the game after she is done.

 

[Dr. Babnik]

how does this help? he is using G H products in coco. not heinz 57 soil nutes and nettles. Confusing much?

Still yellow, my Bloody Skunk.
I gave her 0.5 L with 1 ml Sensi Grow, 100 ml home made nettle tea, 50 ml apple/potato digest and 3,5 g MgSO4.

I known nothing about coco, but I would use nettle anyway. I use GH Urtica. You can see it works its wonders on the stems because of silica. It is rich in Mg, Fe and other minerals and gives some extra N. I think most growers use too little ions. I use a lot! The only mineral I handle with care is Phosphate.

 

[MedGrower]

WTF you better give some rep back to AFN its coco and it needs nutes from day fuckin one

I do not appriciate this type of abuse for a bit and it is not good for this community. Why do you have to be so hostile and rude?