HELP! Please let me know what you think is wrong

[muggz494]

Hi all,

As you can see, the leaves are starting to yellow and curl. This has been happening only once they start flowering, not vegetative. This grow, I’m using Natures Living soil with coco in a Spider Farmer 200 tent. I’ve been giving a teaspoon of Cal mag at watering..do you think I’m burning them? Thanks so much for any advice, it so sad to see them like this.

[9fingerleafs]

Looks like a severe nutrient issue. Are you checking the ph of the runoff? I've seen many times bags of soil present this kind of issues. Even the most trustworthy brands like fox farms. There's not much you can do at this point. I wouldn't use that soil any more. That's why I changed to coco and never looked back. You can control what the plant gets. If I were to guess I think the soil is just too hot or very imabalanced in the npk ratio