Sie is 21 days old and donte See bugs ?! So a nutriens Problem ?i water her Slow with Biobizz grow and 1.5l water ph 6.5 so i guess all Fine? Can This be a Stress Reaktion ? because i broke one of her Main Triebs a couple day After topping her?
Hello mate, this could be the beginning of a pH disequilibrium in the soil, try to keep the pH solution more close to the 6.2. Normally the first sing of this issue is the problem with Ca/Mg.
Good luck and happy journey!!