Blätter Hilfe!

It's an inch btw not a cm. Soil can be tricky. Ppl mainly over water or water too often, (is another form of overwatering), with a cup that size it really only needs 50-100ml of water every 3 days and as the plant gets bigger and u uppot the plant will need more. But it stays the same every 2-3 days. My plants now take 1l of either nute mix once a week with 1-2 water feeds inbetween, you'll know without even having to touch the soil in a couple of weeks. You'll see the top all prickle, that's your roots searching around for water, don't panic when you see this it just means your water ings are on point and you have healthy roots. 1inch down if you hit hard earth it's still watered enough if only slightly damp at that level then feed. Feel free to DM me if you need more detailed info for feeds and so on. Good luck happy growing.

Yes, rotting from being too wet, too long. Water only when the top 1cm is dry before watering again and she should recover...... hopefully. She will need transplanting soon, so once she has recovered and making good new growth, this will be an ideal time to do so. Once in the new pot, it is best to water deeply to run off every few days and not watering again until the top 2-3cm (note the change) of the soil has dried out. This could mean only watering every 2-7 days, depending on temps, the plants requirements and the water holding capacity of your soil mix. Hope this helps, Organoman.

With limited information it looks like she is overwatered. In soil you have to cycle a wet and dry time. Or add lots more perlite or coco to mix. Roots are not getting enough air.

Thats the first signs of root rot. Caused by over watering. Fix it by not watering again until the cup is almost dry, this will be more than 3 or 4 days unless your room is quite dry or warm. Once they are past the first week, u need to start being mean to the plant and not water as much and make the roots seek out water to grow bigger. Once or twice a week is enough, never more often than that. ur plant needs air in its root zone and it cant get it if the soil is saturated with water- so if you squeeze the sides of the pot to break up the soil a bit and let the soil dry out over the next few days it will come good.