Seedling leaves curling upwards and spots forming

Hey guys everything has seems to be going well so far although today I have noticed the leaves curling upward and some spots forming, outdoor grow and it has been very hot today 86f so wondering if that can be an issue ?

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Possibly/not very likely.
That is towards the high end for cannabis but not extreme.

Not a coco user but that may be a bit high. @Graysin is in coco I believe.

That is probably part your problem. Either it is waaay too high at 500% :laughing: or a bit low for early veg at 50%.

That looks like either some water/nute splatter or a pest since it is outdoors or both.

I use PPM and too stoned to translate but that may be low? My target PPM is 1000 minimum.
As I said, I don’t do coco but is it ok to have it outdoors? Seems like it would dry out too quick.

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Sure am. Thanks for the tag.

5.8 is ideal for veg stage, 6.2 is better for mid-to-late flowering

Yeah it very likely requires watering 2x a day with temps in the 28-30°C range (low to mid 80s in F).


I’m sober and a little confused about the EC reading. 800 like 0.8?

Do you have a pic of the EC meter with a reading on it?

What are you feeding and how often? Plain coco has no nutritional value. Peat moss doesn’t add anything meaningful. I worry she’s starving slowly.

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800 is microsiemens .8 is millisiemens

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Ah, thank you. I could logic it must be .8 on the chart with EC but no familiarity with the units.

Mother Earth Coco Peat is soil, it has some coco in it, but you still should go by soil guidlines, not hydro, so you’re good at 6.2. When you say EC is around 800, are you talking about what you’re putting in, or the runoff coming out?

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From what I’ve read ph should be 6.2 for seedlings in coco so that the seedling doesn’t have to compete as hard for the calcium.

Now that you say it I do remember possibly getting a drop of nute water on the leaf and mustn’t of got it off properly.