Droopy plant leaves what is the cause?

What are you using for water? If you’re using tap water there might be something that needs to be filtered out. Also depending on where you’re living you could put that in a window and get natural sunlight. It’s winter where I am now so if I put a plant in the sun it will go to flower. You could do that and start a new plant in your tent. There is no information other than a picture. What’s your dirt? It could be something in you grow medium. What light are you using? it could be your light. What seeds are you using? It could be your genetics. Also under watering and overwatering the results will look similar so you could be under watering. If you pour water in the pot does is go right through or slowly soak in?

Thanks for all the replies and suggestion, a little update: I left the plants 4 days (since the question) witouth water. Since now some leaves have changed a bit color (lighter) and some other have purple-ish stains (dunno how to add another pic) This morning they were very dry and ligth and I watered a total of 2 liter per pot with a 500 ml runoff each, with no nutrients, just p6.5 pH. Now they are back under the lamp but at the moment they still look droopy like the old picture. If they don't recover now I dunno what to do next... I'm just waiting for the plants to recover before flipping into flower...😞

Hi Geppo ,it looks like overwatering ,the roots are in lack of oxygen ,I always pre made and mix my soil with extra extra perlite ,also watering schedule is important to know when to and when no to ,also you can check with your finger if the top soil is dry to 2-3cm or when you lift up the whole container before and after watering the weight is sooo different,when light needs water when still heavy no water :) ,keep up the good work 👍🏼

soil looks wet. did you lower or increase the light? this looks like a water or light issue

As your using fabric pots the water should drain quite easily. If your top inch of soil is dry inbetween watering should be enough but feel the weight of the pots if you can, if they are really light you will need to water/feed. When you do water/feed do it slowly and put enough through the pots so that you get 30% runoff of the volume you put in, eg for 1L water you want 300ml runoff, etc. Also try feeding one watering and next watering plain water. Make sure your ph is also in range.

I wouldn't flush, have a feeling you're overwatering already. Unless you're waaaaay overfeeding you haven't had time to build up salts yet. How do you judge how "dry" you are? Go by weight, sometimes the top will seem dry but still hold a lot of moisture deeper in- especially if your drainage isn't adequate. Pick up your pots after watering and don't water again until they are noticeably lighter..in a 5 gal pot that can take as long as 3-5 days with smaller plants, maybe even longer if your drainage is really bad. I dunno if I'd repot to correct it, but I'd probably work more perlite into your substrate in the future to improve drainage.

> Before I had ventilation off for 1 hour every 2. If you're talking about your extractor, as I don't see any fans, you should run it continuously. > Still thinking about a water issue but dunno how to solve it at the moment! Flushing the soil: water sufficiently for the run-off to become clear again. Wait half an hour for the remaining salts to dissolve in the water, then water copiously a second time. Leave to stand for a few days until the leaves turn green again and feed by spraying the leaves from time to time. Use 50% of the usual dose of fertiliser at the next watering, and continue as normal afterwards.

Thank you for the answer guys! Sorry for missing infos... room temp is max 23,5C at day and min 16C in night. Humidity in between 50 and 60 %. Before I had ventilation off for 1 hour every 2. Now it's almost a week that is always on but I did not notice any change.. Still thinking about a water issue but dunno how to solve it at the moment! Should I transplant? should I keep feeding nutrients or go just water? Or Should I stop watering for some days? Again, thanks

Extreme temperatures, either too high or too low, can stress the plant and cause leaf curling. Maintain a suitable temperature range for your cannabis strain. Check you RH

Drooping leaves means not enough oxygenation of the roots: your plants are drowning. I hope you don't wait until the soil is completely dry either, and that you leave enough water to run off under the pot to flush out any soil residue (salt and co.), which I doubt given the absence of cups under the pots.