Answer: Based on your description I would suspect that they were too wet, or possibly too cold, or possibly transplanted into too large or too small a pot, or possibly a combination. Peppers really grow best at about 70 degrees during the day and 60 degrees at night and prefer a moist yet well drained soil. When transplanting, it is better to move them up to only a slightly larger container than a much larger container, since the larger container may increase the risk of overwatering. Be careful, too, not to start them too early (eight weeks is about enough), because once they start growing it is better to set out stocky young healthy plants than stressed older plants. I hope your peppers recover!
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