Possible nute burn. Please help

I have just started my first grow. I am running a 1000w HPS in a Blockbuster 6" reflector. Temp is avg-77. Reflector is at the top of a DR120 4x4 tent.
I have 6 of Northern Lights and 6 Pineapple Trainwreck. I run soul synthetics. I fed them once with 3ml of Grow into a gal. I'm curious why my plants look like this:
The tips are also curling. I watered them a week ago and wednesday. Wednesday was there first hit of nutes.
Thanks in advance. I have read the bible by Jorge, but I'm very new to growing!!!!!!!

how close are you keeping the bulb?

too young for nutes
what is that "soil"?
light distance as said before
get a bigger pot

There are a couple of sets of leaves there.. It is not too early for nutes.
It is too early for water stress and heat stress.
Get that bulb 3 feet away from the babies.
Water them well.. you want a lot of runoff.. run two cups of water through that little pot. A week ago is a long time since watering.
Also, listen to Jesus and transplant ASAP.

The bulb is at the top of the tent. It is 4ft away from the babies. I will transplant to 1 gal. tomorrow morning. I watered last sat and watered with nutes on wednesday. Only like 3/4 a gal between them each time. The soil is roots organic with size 3-4 peralite.

Doesn't that soil of yours have time released nutrients already in it? Nut burn for me usually starts at the tips and edges. What kind of PH you feeding them at? What is the PH is that soil? Does that Perlite also have Nutrients in it like some of the MG crap does? How much perlite did you put in there. Looks like three parts perlite to one part soil. Those things are Boulders in such a small pot with such large perlite taking up a lot of root space. I find it benefitial to start out my veg in smaller pots. But I do not take up root space with large amount of perlite and such. Now this might not be the problem, but to me that is an issue.
One other thing, Is that filtered R/O water you are useing for your plant?

How do i test the ph of the soil. I have the milwaukee PH tester.

I will take your advice on the perlite for the future. I don't believe it has nutrients in the perlite.
It isn't r/o filtered. I wish i could afford that.

anyone have any advice? I flushed them and the water at the end was 5.5. How should I reverse the damage?

just transplant them into bigger pots of roots soil and water them in well.. there are enough nutes in the roots for a week or two of growth, but 1/4 strength nutrients couldn't hurt.

Your target PH for soil is 6.8. 5.5 is way to low for soil. I have been growing in Coco Coire for the last 4 years. How i do it with coco is if i need to raise the PH of my medium by 1.3 I would water or feed them with about .6 higher then my target. so for you I would water them with 7.2 PH until your medium gets more in the range. Most soil growers put additional stuff in the soil to help buffer the soil to the correct PH before they plant in it. I think Dolomite Lime is for lowering the PH not sure what is used to raise it. Give what I suggested a try if no one else rings in with an answer to that.

This is just one more reason I stick with CoCo. All the benefits of soil with out the hassle. But some people just can not get the hang of Coco also. That I just can not understand. To me Coco is so easy. I just check on my plants like twice a week. One person my do good at Hydro while another can not get a thing to live in that systemm, But grows monsters in Soil. Like they say, to each his/her own.

These are the latest pics of two of the plants. They don't look so healthy at the moment. The bottom leaves are now becoming unhealthy. I followed Lord Dangly Bits instructions to water with a correction to the PH, but the situation seems to be getting worse.

Bit of lime in the soil will raise the pH or stabilise it at around 7. It does leech out of the soil so needs a top dressing later on. I grow in a medium which starts 6.0 then add lime to bring it up a bit. Needs well watering in though as it will burn otherwise.

Is there a way I should apply the lime so it doesn't burn?

It don't look like nute burn.
It looks more like it need to be fed,