thats clearly a nitrogen excess. i read you give her only 1 ml/l of biogrow, so your soil is hard prefertilized. stop giving her biogrow and give her only water until the claw shape disappears
When you get the claw that means you have overfed. But by how much? Do you need to just water or flush. If your have a tester then check your runoff ph and ec and adjust as necessary. Cheers friend