Amnesia (AUTO) stunt at week 2 ...

My Plant is 3 weeks + 3 days ,old, and as you can see in the pictures, she doesnt want to grow anymore. At start i gave her 0 nutes, then i thought a bit of fish mix 1.2 ml per 0.5 liter water, and that maybe would "undo" this growth-stunt. She is still not growing a single bit. What is wrong? I dont think its a good idea to water her anymore, since how the leaves are looking. I watered her with nutes 4 days ago, and i have a feeling shes not spreading her roots. As beneath her is a bit dry and around her is still wet.

Any idea please?
Soil is still fresh, so its gotta not be a Soil problem. I used Biobizz products - BioBizz Light mix Soil (which i always use). 90W light LED viparspectra P600 17 hours light

Any ideas? Is it too late?

Pictures: