Hi, first thing i see on your Girl is, that the Nodes are very Close together, so i Think your Light is to close ./ Second thing , your GIrl needs no feeding atm, she is too young, you hurt her. Anything like aloe for the roots is ok, wait until she is 21 dys olsd to feed, and then take half of the recommend amount. And Blooming fertiliser not before the blooming..Happy growing, for further questions feel free to ask