N tox ??

Soil is FoxFarm Ocean Forest.
Lighting is 1x 600w full spectrum on 18/6 schedule.
I did not use any added nutrients for the first 4 weeks. They’re now at 6 weeks and have been giving General Organics BioThrive Grow (NPK 4-3-3) about every 3rd watering at a low dose (2 tsp per Gal).
They are started outdoor first 4 weeks and brought indoor due to heat.
Recently transplanted using Mykos brand root stabilizer.

Provided more pictures detailing the curling under, yellowing and leaf tips.
Wondering if it’s for sure Nitrogen Tox or something else?

Top growth

Growth under top set starting to curl

Yellowing and curling of older leaves

Up Close Yellowing

Up Close Curling

Looks like it was a clone. Don't worry about the old growth on those. Just watch the new growth for health. Maybe just a little too much nitrogen as indicated by the top leaves canoeing a bit.

The soil is probably a little hot and you just need to wait for the plant to grow into it.

Renfro said:

Looks like it was a clone. Don't worry about the old growth on those. Just watch the new growth for health. Maybe just a little too much nitrogen as indicated by the top leaves canoeing a bit.

The soil is probably a little hot and you just need to wait for the plant to grow into it.

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Not a clone. Germinated them from seed.

Also this is my 2nd plant. Curling issues as well but not as much yellowing.

Yeah I noticed that after I posted still I wouldn't be concerned, the baby leaves don't usually last. Keep an eye on the rest of the plant. I don't see an issue, just hot soil. The plant will grow into that need for feed. Next time you can cut your soil with something like a peat based starter mix if you want, use a small container and up pot to straight soil after it's grow into that feed need.

Notice how the older growth is whats effected mostly? The newer growth looks healthy and I think the plant is now enjoying the feed it's getting. No worries, keep doing what you are doing.

You can trim off the old leaves if you wish, their color can attract pests. Leave the nodes if you intend to take clones later, you can use those branches as clones and not have to chop up the better branches.

Cwmoore577 said:

Also this is my 2nd plant. Curling issues as well but not as much yellowing.
View attachment 4356758
View attachment 4356759

Click to expand...

Is there a fan blowing on these?

hotrodharley said:

Is there a fan blowing on these?

Click to expand...

There is not

Renfro said:

You can trim off the old leaves if you wish, their color can attract pests. Leave the nodes if you intend to take clones later, you can use those branches as clones and not have to chop up the better branches.

Click to expand...

Idk the plants really aren’t but about a foot tall right now. And one of the newer leaves on the 2nd newest set is already curling and wasn’t yesterday. I’m hoping I can solve the issue before it gets worse.

Don’t give them any nitrogen till they grow out of it