I've had so many issues with these girls in soil. I transplanted my 3 bad ones into Coco Coir and used 2ml per 400ml water to get them going. This gave me a ppm of 200ish. I left one in soil and well, you can see.
1.7.20 - The girls are forming lots of new growth. Looking way better than a couple of days ago. Long way to go here. Dropped them down to 100ml of water with .5ml of MegaCrop Concentrate.