Piccola piantina contorta

Hey there Polliceverde , looks like some water droplets could also have burned from the light, you can spray, but be careful , thiner spray , it can also affect the growth. Above when you say you dont adjust the pH, at least you should measure the pH. In soil it should not be a problem because the soil contains quite a lot of natural bacteria that will manage the pH quite well. If you're not sure , try bacilus subtilis and trichoderma , this can prop up the soil matrix . When you measure pH you should be watering with pH 6 , outflow should be pH 6.5 , you can get some cheap pH strip accurate to .1 , hope this helps ! 🚀