I’m no expert at all since I have just started growing weed but I think you are overwatering your plants. I am using the dry wet cycles tecnicque, so I water plants when the soil feels dry. As for my experience plants until 2 weeks old need just tap water at approx pH 6.5. You should aks question and I’m sure experienced growers will help you out! I am a little worried for your plants but wish you luck they will get better!
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