Seedling leaves slight curling

[Venkman]

Hey all 😁
I’ve just got my Spider Farmer SF1000 a few days ago, it’s in a 2x2x5 tent, set 24” above the top of my seedling with the power dimmed to 70%
Ive noticed the edges of the two bigger leaves have curled up at the edge slightly, and the smaller finger leaves are drooped slightly. There doesn’t appear to be any yellowing on the edge of the leaf though.
Do you think this is due to too much or too little light. Or more likely the overwatering I accidentally gave 3 days ago, my bad, haven’t watered since though 😊
Does that seem a good height to have this light for this stage?

More info:
Royal Queen auto
soil with 30% perlite
19 days since sprouted
no nutes yet
Water ph6.5 when watering

[Rwise]

Looks like light/heat stress, maybe raise the LED to 30" for a while.

[Venkman]

Thanks, I have backed off to 30”. Any idea how long I should leave it back, or just let the plant grow towards the light and up the power 10% each week until 100% or something?
Thanks for the advice, 1st time grow 😁

[dphipps1020]

I agree with Rwise it looks like the light may be a little close. Also, looks to me like your leaves are going pale from lack of nutrients. Does your soil have nutrients in it?

[Venkman]

dphipps1020 Thanks, I’ve backed the light off to 30”.
Not given any nutes yet as I kept reading you don’t need them at this stage in soil. Do you think I should give it some? I’ve got Biobizz grow and bloom and a bottle of cal mag at the ready 🙂

[ChadWestport]

Definitely signs of overwatering, dropping / yellowing. Watering seedlings in that large of a pot is tough. Smaller, starter containers are good because there is only a little soil mass to match up with the little amount of root mass. This makes it easier to keep the desired water to oxygen ration in your soil in check. With large pots, there is so much water going in and very little roots, they essentially are sitting in over damp conditions.

Feeding is going to depend upon your medium. Typically you don't feed until there are a few sets of true leaves and even then it should be at around 1/4 strength. If you are using a soil like Fox Farm Ocean Forest, that comes amended with nutes and doesn't need to be fed for at least 3 weeks. What type of medium are you using?

I just purchased the same light for vegging. I had to dial it back to 50% at 24" for now. During vegging, the company suggests 40-60% power...... I think, but it isn't 100% until flower. Try adjusting the light up a few notches every few days. The leaves will tell you if it is to close by discoloration or the tacoing you mention.

[Venkman]

Thanks for the advice, my light is now at 30” and at 70%
I suspected overwatering as few days ago I gave it a little and it had run off, as even though the top was dry, beneath must’ve still been pretty damp.
It’s just plain old store bought multipurpose compost as specialist soil is very difficult to get hold of in UK, mixed with 30% perlite
Next time I’m definitely going to start with solo cup and then into fabric pots.
I’d heard not to transplant autos tho as it stunts their short growth cycle

[ChadWestport]

That sounds like a good setting for the light. I'm playing with it too, so hopefully we'll have them dialed by our next rounds. Transplanting can cause shock to a plant but you have to be pretty rough with it. At most, you might lose a day or two of growth but compared to the alternative, I find it acceptable. I've never had issues with transplanting and root shock. Fairly easy process if you have done it a few times.

[Shankemdirty]

i also heard not to transplant autos i start mine in 3 gallon smart pots i start off by watering them around the base as if it is a small cup then i slowly add more water making the circle bigger over time and i do trails of water in a X shape basically lines of water so when the base drys the roots stretch for the water if you are gonna transplant i used beer cups for along time but then i found these Huvai 50 Pcs 6" Plastic Seedlings Plants Nursery Pots with 50 Pcs Waterproof Plastic T-Type Plant Tags and 2Pcs/Set Transplanting Digging Mini Tools

the Mini Tools are really helpful in my opinion

https://www.amazon.ca/gp/product/B07F38TRR4

The beer cups are fine but you got to cut the holes and just found these we're more easy to transplant but up to you just giving you a option.

[Shankemdirty]

I use these cups for my Feminized plants and they never show signs of transplant shock

[Venkman]

Cheers, will give those a go next time. Fingers crossed I can bring this one back to full health in the meantime 🤞🙂