Seedling is not doing well. White spots on new leaves, one leaf down.

[atoms]

Hello friend,

first timer here, i need some guidance i think im doing it wrong.

Setup:
4x4x7 homemade tent.
Solo cup
80% coco 20% perlite
Viparspectra 450w at 24' on veg setting
Small fan for fresh intake and small pc fan on top for outake
Temp is between 22 and 25 C

Seedling came out 5 days ago. I watered her 100ml with 1/4 strength nute (veg and calmag solution) later the same day at PH 6.0 ( i see now that might have been too early)
I moved the light to 30" just in case that it could be light burn.
She still grows okay i guess.

I'm looking for ideas. I was thinking light burn, maybe nutrient burn? Should i flush or maybe move the plant directly into the 5 gallon smart pot that i ready to go with no nutes in it yet?

Thanks for your help!

[Mr.furley]

I think your problem is with the lights and it sounds like you corrected it may need to move it higher still your plant is young.
Don't flush, just let it dry out and only water next time to see if she's recovering.
Don't Transplant just yet let it recover for a week to see if the light was the problem.
Remember that if you have one problem and change three thing about you grow you can create yourself a whole new problem with too much love.
do you have drainage in the cups?

[Trimmings426]

I agree with Mr.Fur think it ,at have been a little light burn, I use cfls for my seedlings and I started to experience a bit of light burn with one of my babies yesterday and had to move the lights up a bit. She was getting the same spots so yes definitely think it's light burn, just keep a close eye on her and watch the height of those lights, yours in particular are very strong , good luck friend

[atoms]

Thanks for you advice friends. Mr Furley you are right if i move too many variables it will be difficult to pin point the problem. I do have good drainage, the cup as cuts and hole at the bottom and its on a railing. Trimmings426 its good to know that you see the same things on your, it narrows it down!

Thanks for your help !

[Jr83]

I do the same nutes no problem is say raise ur ight you 30 inches maybe even 34 that's where my vipar is works great mine all died with my light closer

[Jr83]

Are u water a little everyday i do and it is working great I'm akso doing the same ratio of coco and perlite

[Jr83]

I also put a small zip luck on top of my solo cups to protect my smaller plants I'll take pics when i get of work later

[atoms]

Awesome Jr83 cant wait to see those pics!

[Jr83]

Im at work i take some when i get home gotta work 14 hrs today i should be off by 630 i hope otherwise i may cry.lol