Leaves turning light green and burning margins

Guys, I have transplanted my two girls last week. I had some problems and solved (I think). Leaves were cupping and burning on the tips on previous problem. Link is here for that: https://www.rollitup.org/t/curling-leaves-and-dying-tips-need-help.1032879/#post-15831077

Now, after the transplant, girls started to relax but on the following days, they are stunted. Or the growth is slowed to a great extent that i cannot observe. I see no growth for one week. Leaves started to turn yellowish from the margins. Some leaves dying from the tips.

pH: 5,8 and 6.
No light stress because I tested it by putting light away and close.
Water: I watered them a week ago and inside the soil it still feels wet.
02.10.20: I added NPK 15-15-15 with phed water (too little of npk) to test if it is nute deficiency. I haven't given any nutes until this.
Soil is coco+perlite+worm castings.

Something is missing from your description of your soil.

Thats not straight coco + worm castings.

Once soils actually need Phing it should be done at 6.1-6.8.

Coco + perlite would need daily watering and feeding.

If that is actual soil which I suspect it to be it doesn't need any nutes for a good 4 weeks after transplant.

Over watering and over feeding can and will stunt the growth

Wizzlebiz said:

Something is missing from your description of your soil.

Thats not straight coco + worm castings.

Once soils actually need Phing it should be done at 6.1-6.8.

Coco + perlite would need daily watering and feeding.

If that is actual soil which I suspect it to be it doesn't need any nutes for a good 4 weeks after transplant.

Over watering and over feeding can and will stunt the growth

Click to expand...

I only once fed them with litte to observe whether it is nute deficiency. I watered them only twice from the seed. If you think the soil I got is the problem what should I do for that? Should I dissmiss this patch and start with a good soil? which I do not want to do. As far as I observe, the soil does not dry out very fast. I put a moist meter in today and it showed 8 out of 10.

Chryniszzswics said:

I only once fed them with litte to observe whether it is nute deficiency. I watered them only twice from the seed. If you think the soil I got is the problem what should I do for that? Should I dissmiss this patch and start with a good soil? which I do not want to do. As far as I observe, the soil does not dry out very fast. I put a moist meter in today and it showed 8 out of 10.

Click to expand...

Whats the name of the soil?

Are there drainage holes at the bottom of that pot?

Wizzlebiz said:

Whats the name of the soil?

Are there drainage holes at the bottom of that pot?

Click to expand...

I bought the soil as cocopeat+perlite with ph of 5.5-6.5 and added it %25 worm casting. I couldn't remember the brand.

There are drainage holes at the bottom. 4 of them.

Chryniszzswics said:

I bought the soil as cocopeat+perlite with ph of 5.5-6.5 and added it %25 worm casting. I couldn't remember the brand.

There are drainage holes at the bottom. 4 of them.

Click to expand...

A plant that small doesn't take much water. That will take a while to dry out. But most important let it dry out. Over watering leads to root rot. Once the roots get to a certain point they shut down alot of production for the plant.

With the soil. You are missing a bunch of key ingredients. I suggest getting a more complete soil and transplanting.