First grow. Autoflower slow growth and showing yellowing

[colthot]

Hi Guys,

So this is my first grow

Strain : Chemdawg auto
Medium : cococoir, vermicompost and compost. High concentrate of vermicompost/compost are lined to the wall of the pot
Water : 6.5 with a bit of calmag and rooting solution
Lighting : 400W Led, 60CM 23 inches away
Duration : 2 weeks
RH : 75-80% (Rainy season where I am situated)
Temperature : 28 - 31 Degrees Celsius

The seedling was transplanted yesterday only, I could only see one tap root coming out from the top of the medium.

Issues I see,
- Slow growth, all grow journals have least 4-5 nodes by now
- Leaf tips yellow and seem dry
- First true leaves have yellow at their start


I haven't watered for 2 days as the medium is still wet when I transplanted. I can't wrap my head as to what the cause is, nutrient deficiency, calcium, too much heat. Can you please advise if I'm doing anything wrong and the way forward, I have two more seedling in their 3rd day don't want them to endure what this seedling is going through

 

[SneakyReefer]

I can’t have a lot of advice since I’m on my first trip as well. But, I had this happen with two of my three seedlings. I believe I was fertigating too much and started nutes too soon.

On the bright side, the two plants that struggled have bounced back and caught up to the one that was way ahead.

I stopped watering much and just made sure the coco wasn’t dried out for the first few weeks...

Good luck!