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Doesn’t look like calcium def. They do look a little overwatered though which could be causing some root issues.
Should be fine and grow up a bit. Just be careful with watering. I’ve lst’d plants that end up touching the soil (ocean forest) and the parts...
Like jont said, this is very normal, especially with certain strains. They learn the light cycle very well and prepare for “sleep”. Nothing to...
How many days into 12/12 is this?
Just a little nub like in the picture
Looks like a history of too much N, but the brown spots are a calcium deficiency
Next time leave a bit of the stem on the top. About a quarter inch.
Too much Nitrogen not enough magnesium is what it looks like to me
Not ruderalis, they all look like sativas. Genes probably aren’t the best, but they look healthy regardless
Good, I’m glad. You may end up with a seed or two but if it’s your only plant just grow it out. People are hard on hermies because they’ll ruin...
yes most likely... do you have a picture?
Yes, pluck it off with tweezers, but you have to check the whole plant everyday. I did one like this successfully. If you have it with other...
What’s your grow medium?
Move it into the new pot, switch to 18/6.
Looks most like a magnesium deficiency
If anything, too much nitrogen. Doesn’t look heat or wind related. Heat, the leaves will fold in like a taco, wind they’ll curl towards the...
Just let them grow out in my opinion. They only grow so much before flowering and the big fan leaves provide energy for growth. Pics would help...
Curling like that or “tacoing” is too much heat. Look like they could use some nitrogen too bud that could just be the lighting from the picture.
Looks like leaf septoria
Looks like overwatering