Problems with 2 week old clones

This is my first grow. Growing under a led with t5 fluorescents... Picked up four clones (The Purps, Grapefruit Diesel, Grapefruit Kush, and Sour Diesel) and been having problems with my hydro setup. I messed up and some of the reservoir evaporated so i was giving my clones a more concentrated form of Flora Nova Grow for about a day. I was using 1/8 recommended. So all plants had some sign of nute burn on tips. Flushed with distilled water for about 3 days and checked ph regularly. The purps never successfully rooted and pronounced dead today. The Grapefruit Diesel is having problems showing up in last two days.. Here some pics. I'm using about less then 1/8 recommended nutes and still showing signs of nute problems. Weird colors on fan leaves and seeming to twist a bit. The Sour Diesel is thriving and Grapefruit Kush seems to be healthy with strong roots coming out of net pots. However the Grapefruit Diesel is having problems and the root mass is very small compared to others (hasn't came out of net pot yet). Temp 68 - 79 degrees F. Humidity 50 - 70. Please check my pics and help me out with this Grapefruit Diesel clone.

Heres my other clones.. First pics are of sour diesel which seems to be thriving the tall sativa is really showing thru as its stands above the rest. The first two pics are of the sour diesel and the other two are of the Grapefruit Kush. Please help if you see anything to help. They both have long roots coming out into the flood table and seem to be healthy. There are burns on the SD clone on the tips but it looks the healthiest. The GK clone hasn't grown much in height and i have noticed the leaves seem to be folding up and curling down at the bottom which concerns me. Please someone help i'm leaving town tomorrow and need to give instruction to my caregiver over the weekend. It would be much appreciated.
Jah Bless

pics didnt go through.. heres the sour diesel and grapefruit kush second

use less water...looks like u been overwatering them, dont spray ur plants either let the roots work for the water. thats there job u want it to be moist or wet at the bottom of ur soil balls then the roots seek out the water and ur plant grows

so your saying im over spraying the leaves and thats why my roots grow slow on one???

The others grew fine. I think it must be some kind of under or over nute problem. I flood my table 3 times a day for fifteen minutes and spray 3 times a day with distilled is that too much.
I think im just going to flush my system over the weekend with ph'd distilled water and add nutes if they look good when im back. Do clones even need nutes??? If anybody has some ideas please share your experience

I have 3 -5 week old bubblegum clones 10-12" tall.I started them on GH Flora nutes, 300 ppm.I had a plastic bowl that I put distilled water in, with my nutes.I just dunked the bottom 1/4 of the rockwool, which was 2x2x3 inches deep(they came like that from dispensary), and kept hydroton around it, as to keep the moisture in..I didn't fire up the flood table for about 2 weeks, just dunked them twice a day like that..Now I'm at 1300 ppm, they have mad roots coming out of the RW, and growing nicely...

Don't rush it, they'll come along..I upped my nutes gradually 300, 600, 800, 1300..hope this helps!!

Your leaves are drooping over, a sure sign of overwatering..If I give mine too much at night, they'llget like that, but in the morning, they straighten right up..I also put a small fan blowing air through the hydroton..

definitely overwatering

Thank you for the advise. So should i cut back on watering 15 min three times a day... They could possibly be getting too much water because some remains in the flood table...? The thing i cant understand is why the leaves are turning brownish/purple on the one? what does that symptom mean?

I would hand water them once a day for now. Be sure to check your ph and EC off the run off when you water them, so you know what the roots are seeing. For some reason it looks more like a ph problem then overwatering.

Unity

K so finally all three are rooted. The roots all look healthy yet the leaves arent lookin great... I flushed the system out for 3 days now and it seems the roots grow more consistently

I was wondering about that if i do have a ph problem..???. I have a basic kit but was just wondering what exact color i should go for. I have been shooting for that piss yellow color. but noticed that might be a lil too high because you want it below 6.0. Should i have the color be a more orange/yellow color. Thats what distilled water looks like to me