Kein Wachstum nach 5 Tagen

Yeah, 1-2 weeks without a drop of water and no nutrients, they don't need anything in the first weeks.

use appropriately sized pots. Then you can water properly. That too needs some rethinking and stick to orthodox methods. if the light is the cause, those nodes won't space out over time... in that case, you know to give a little less light next time... If giving too much light is ignored, it will stall the plant.. a seedling starts to look funky when given too much light.. the nodes stay tight and the leaves start physically pushing on leaves above and they start to be forced upward... not a good version of 'praying' leaves, lol. So, no matter what the light intensity should be, how the plant grows is the basis for everything... the math gets you in a decent spot to start, but then you must adjust based on how the plant behaves. Use deductive reasoning, not inductive. Temp and RH will play a role in exactly what a plant can handle at any stage of life, too. Seasonal differences are possible and may require different targets - whether using PPF measumrents or lux doesn't really matter. "PPFD" is not a single-point measurement. read up on DLI for proper terminology use. it'll avoid simple misunderstandings when discussing light with someone that actually understands the math. The nitty-gritty isn't necessary to memorize. Like is said, no matter what the plant growth pattern is what dictates how much light to give. That growth is the culmination of all the factors that matter... The growth pattern is accounting for the impact of climate and atmopsheric co2 available... max DLI is not a consistent value for all settings... only if every relative variable is the exact same would you have the same 'max' DLI. If climate changes or atmospheric co2 levels change, you'll have to re-measure for seasonal light intensity targets, too. And, per stage of life... LOL. Take notes.. it helps. Especially if workign with several lights and 3-4-months between doing working with seedlings... and other various points of life cycle.

If you really want them... more patience if necessary. Otherwise, I would have said it doesn't look like a nice, easy coconut + perlite mix or something similar, it could be that they need a bit more air or had a few too many drops of water. The beginning can... but doesn't have to mean anything bad, but at some point, it's too late to throw them away, so I always try to push myself with autos when something goes wrong... the sooner you get rid of them, the better... or not at all 😅 I've had great stuff from Linda before, but that doesn't mean anything 👻