Second Try: Soil Super Critical Auto Grow 2018

@AngryBird Here's few photos. Only got a chance to post them now. Thanks for your advice. There's one picture with bright yellow dot at the tip of the leaf, what would cause that? I saw few bright yellow leaf ends. Would that be nute burn?
 

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The last pic, could be burn from a drop + lights.
Keep an eye out for more, just in case.
Always have in mind to look for bugs/critters.
The purple stem is nothing bad
Genetics usually. But I read somewhere it has to do with temps or water too. (pH)
 
@AngryBird Quick update. Plants still growing, but tge problem with leaves are not going away. I'm attaching few pics. Should I still wait or do something?
 

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@AngryBird Quick update. Plants still growing, but tge problem with leaves are not going away. I'm attaching few pics. Should I still wait or do something?
The leaves are going to stay the same.
Just watch if new ones appear.
You can cut the damage ones of, so you have a better view.
 
@AngryBird The problem is spreading to other plants as well. Bottom leaves are first affected, they turning yellow and then getting that strange colour. You can see in a photo. I've tried to give GHE flora trio nutes yesterday, half of recomended dose and calmag. Plants gone into flowering now, I can see pistils developing.
 

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Is this only happening on the very lower leaves of the plant, or do you see the new growth effected? Can you upload pics of the entire plant? It looks like it's only happening to a few bottom leaves and it's perfectly normal for the plants to shed these leaves as they grow. If it's only the lower leaves and the rest of the plant looks healthy, I suspect there is no issue. ;)
 
Is this only happening on the very lower leaves of the plant, or do you see the new growth effected? Can you upload pics of the entire plant? It looks like it's only happening to a few bottom leaves and it's perfectly normal for the plants to shed these leaves as they grow. If it's only the lower leaves and the rest of the plant looks healthy, I suspect there is no issue. ;)
There are four plants affected. Three of them have pale green/yellow leaves appearing at the bottom of the plant. The last one is pale green overall. I've tried to give the last one 2litres of water with 2ml of nitrogen 4 days ago. But it didn't help with colour, it's still the same. Them dying leaves are at the bottom. Attaching few pics of the plants. Hopefully that's normal.
 

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OK, I wouldn't really worry about those lower leaves. As I mentioned, it's normal for the plant to shed those and most growers will "lollipop" the plants by trimming the lower growth so the plant can focus on developing the buds closest to the lights.

Here's a pic of one of my plants that been lollipopped:


That being said, your plant is looking mighty droopy, like the pot is drying out and she needs watering.

What size pots are you in? What are the temps & RH?
 
OK, I wouldn't really worry about those lower leaves. As I mentioned, it's normal for the plant to shed those and most growers will "lollipop" the plants by trimming the lower growth so the plant can focus on developing the buds closest to the lights.

Here's a pic of one of my plants that been lollipopped:


That being said, your plant is looking mighty droopy, like the pot is drying out and she needs watering.

What size pots are you in? What are the temps & RH?
@Mr. Krip The pots were dry when taking photo, now they just got about 3 litres of water each. They are in 3.5 gallon pots. Watering every 3rd day, depending on pots weight. I'm trying to keep temperature 25-27°C during lights on and RH 55-65%, when lights are off its about 20-22°C. I was measuring run off EC, and the pale green plant was 1.3(the water given was 0.9), while other plants were 0.6-0.9. Also I saw orange spots on the leaves of one plant which I thought was doing ok, they occured in the last 12 hours, I'll attach the photo. Would lollypoping work woth autoflowers?
 

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@AngryBird or @Mr. Krip Few pictures for update, some leaves started to show new symptoms. The rusty spots on one of better doing plants. Also, does the yellow leaves are normal looking? I mean the purple colour on them?
 

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