10 Days old, Northern Lights (Sensi), FFOFS, Poss PH?

My friend is a med patient and let me take a pic of her plants because she is worried. I told her I think it's PH but who knows. The first pic had 4 leaves when it came from the seed and has new growth coming from below the first set of leaves and above. Pretty strange. But it appears to be in the worst shape out of them all. Only a few are having this problem. She sprayed them with Safe-Soap.

The first week the seedlings grew around 58ºF-65ºF. Now they are steady between 72ºF and 82ºF (The lowest and highest she has observed). She said there was almost no new growth when the temps where down. And when she put them closer to the T-5 for warmth they started to take off.

Is this PH or a pest, or???? No nutes added yet, just living in the FFOFS. Under 4x4ft T-5's, around 4-6" away, wrapped in panda film.

Problems observed:
Leaves twisting slightly (some on their own, some where injury/burn/bite appeared).
Strange seedling had injury on leave almost immediately following breaking from the seed.
Injury/burn/bite on leave edge and spots inside leave.
Some seedlings loosing color, going from dark green (purple underside) to a light/lime green (could this be the temp change?) This has not been as dramatic almost no-longer and issue once temps where changed but not positive.

Growth is great after temp rise. Could damage be from the low temps at first? That is when it started.
New growth appears purple, twisted and thin, fills out as it develops though. Could be unsubstantial but who knows?

She lets soil become pretty dry between waterings (2-4 days). Plants all seem perky, lush and showing good growth. Stinky too, we both thought this was weird because everything I have heard about NL is it is near-odorless.

So, spit some info out at me!

Thanks
PDX

Possibly too much soil in the pot. If the pot is too full, most likely there is no moisture (and by extention...nutes and additives when old enough to need them) getting to the lower root zone(s).
Is that a terra cotta pot? The clay inherently allows moisture to escape, compounding the problem. Also, roots stick to the terra cotta, making transplant sometimes tricky. (won't easily 'slide-out' of the pot)

If in a humid region, or if growroom is consistently humid, and you are using Panda film...be careful of trapping the moist air between the wall and the film. (mold) Using fluorescent-tube lighting, the reflective film is unnecessary. By the time the flouro light travels to the film, and gets reflected back twords the plant...most lumens have scattered. The film does protect walls from overspray, tho.

Keeping plants close (2-4 inches max) to the fluoro tubes is best. Don't forget to keep the air circulating around them, too.

So what is a good size pot to transplant to? Do you think this could be the reasoning for the twisty leaves and spots? Just so ya know, the spots started immediately from when the shell broke off.

Thanks for the reply, we are defiantly learning stuff. Getting prepared for my someday med grow here.

Thanks bro's & ladies,

PDX

The size they are in now looks fine. (for now) Tisn't a catastrophe using those pots...just a pain.
I start in a 2-cup pot, then 1 gallon, 3 gallon, and finally to a 5 gallon pot which takes me thru harvest. (all of 'em are plastic)

Water them so all zones of the soil gets moist when you water. Add half the water you intend on giving, then a few minutes later add the rest. This allows soil to absorb the water rather than it finding a quick path out the bottom. Then let the soil dry till next watering.
In a couple of weeks, start the nutes. (half-strength, observe the results) Eventually, (likely a couple of weeks) you'll work up to a full-strength mix once they acclimate.

So how are your youngsters looking now?

They look fine. Never let temps drop back down to where they were before. Continue to water lightly- cold temps plus wet soil are trouble. Moving them closer to the light was correct. I see no reason for those plants not to continue to thrive with the changes you made to their environment. Go easy on any foliar sprays you use. IF you have pests already, try to figure out WHY. But the seedlings look fine.

The problems before did not show up on any new growth. She re-potted them yesterday or the day before. Anyhow, 5 days later and they look a lot better. They are about 2" from the t-5 but the temps are steady at 72ºF

I'm impressed how they rebounded so quickly. They never looked bad per say just... slow growth and the spots.

Also the PH has been adjusted. She flushed them R/O water/nutes and then fed once more.

Also we where talking to this guy who recommended spraying the soil pretty heavily. It makes it look muddy but when you pour the water in it's distributes pretty evenly.


Also, there is a funny spot on a leave in that one pic, not sure what that is but I'm pretty sure it's just a funky glare. I don't remember seeing that in person, I have an eye for noticing them things.

Curly leaves? Remedies?

PDX