My seedlings have been doing great, but about 1 week after really good growth, i started noticing that the leaves are starting to fold up along the edges. I think some people refer to this as "canoeing". Is this a humidity issue, or a watering issue? or is it some other issue i have no idea about? any help is appreciated, and thanks to all for stopping by. Peace!
Possibly a nute or heat issue. Take a pic, clean the exim info off using jstrip or another program and post it in the sick plants section. Be sure to fill out the questionnaire in the sticky so people can easily help you.
Agreed, we need to see a pic, could be RH but also could be nute def or overload, which itself could be due to pH imbalance, or temp issue. Doesn't sound like over- or under-watering. Also tell us your watering schedule, pH of water runoff, grow op temps, ferts used in what dosage so far, and soil type.