Leafs are curling up

i see a little concern in your irrigation procedure. Looks like you just wet a little area around the plant with some volume of water that may or may not have soaked all they way down to the bottom. It's also easier when plant size matches pot size. in general: 1) saturate - if in soilless, also get 10% runoff, religiously. In soil, some runoff is fine, but you minimize it because you paid for those nutrients that came in the soil and should use them. 2) wait for appropriate dryback and repeat. Allow the top layer to dry. Familiarize yourself with the weight loss. Same loss of weight = same volume of water required. Roots turn toward greater moisture. if you partically wet the medium, greater moisture resides at the top and roots grow superficially, which is not idea. Reduce risk of root zone problems with a proper procedure, too. if you have a small plant in too large of a pot, i.e. it stays wet too long if you saturate, then you can water a smaller circler around the small plant, but do make sure the moisture goas all the way down. Tiny plant in a big pot is 100% avoidable, so simply don't do it. Would you water a plant from a bucket that's been stagnating for 9-10 days? No different for a plant in a large pot that can't drink fast enough.

Hi ....... Ich würde mal die Luftfeuchtigkeit erhöhen, ich denke das ist der Grund für das langsame wachsen........... Der Ec Wert ist auch nicht gerade ideal und ich würde ihn auch anpassen.😎 Viel Glück