My seedling are sick again. Lost my last batch to the same problem. Bottom leaves are droopy and dying. Strain is Purple Haze, medium is ProMix potting soil. PH of my water is 6. I have them under a 230 watt light.
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Stem and main leaf vien is purple. My tests temp is 78 degrees and 75% humidity.
What’s your watering routine look like? Any nutrients added yet?
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I just watered today with a cal/mag
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How much water? Looks either overwatered or under watered.
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If anything i might be underwatering.
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Exactly how often and exactly how much each watering is what is being asked. It matters a lot at this stage. An example would be “I give 5ml every 2 days.”
Welcome to the forum.
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That Promix is void of nutrients and needs more than calmag 
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Ya I was wondering this too, I haven’t ever used promix personally. Knowing this, it’s most likely a watering issue and she’s a hungry girl.
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I’ve never used it either. My understanding is that it is a bit like coco from a watering and pH perspective. @Myfriendis410 has used it. I think he runs his pH at 6.0 when using it and refers to it as a coco/soil “hybrid.”
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Promix makes a variety of soil and soilless blends. Which one are you using?
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Maybe let some others chime in but I think she’s ready for a balanced feed of around 500ppm at 5.8ph.
How are you measuring ph? They seem to be experiencing a much higher ph level than 6.0.
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Please don’t take this the wrong way, but if you’re not real familiar with feeding soiless soil with synthetic nutrients, you’d probably have better success with using something like fox farm happy frog, ocean forest, SoHum, or something similar. They will feed for you for at least the first 6 weeks, or so. That’s what I do, and when I feed it’s only with organic nutrients. I actually top dress with happy frog fruit and flower 4-9-3. Just got 13 dried and cured ounces from one plant. Densest buds I’ve personally ever grown. And the smell is out of this world.
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I have some running in ProMix BX and feed from the start at a PH of 6.0-6.2🤟
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The potting mix
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They sure perked up with the cal mag N that I gave them. Im leery giving seedlings nutes. Thats why I waited. Thanks for all the great advice!!!
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They have recovered well! Thanks for all the help!
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