Probably a little over fed with N? I laready flush...

Hi @sebino! Dark foliage, clawling leaves, yep this definitely looks like a Nitrogen toxicity, and I think you're not far away from the non-recovery point. Your plant has ended her stretch and don't need Nitrogen anymore, she will be fine with the Nitrogen accumulated in her system and in your soil. Now as an emergency move, you must flush your medium asap with an unreasonable amount of water (some growers do it under the shower!), this will help to get rid of the extra Nitrogen in the soil and get back on track on a healthier basis. When flushing, keep watering until you have at least 30% of the container's capacity in the runoff. Don't feed at all, even BioBloom and TopMax can make the situation getting worst, because of salts buildup she probably won't be able to handle any nutrient intakes for a while. Flush, flush, flush, then use a tiny fan to blow a fresh continuous breeze onto her container, this will speed up drying for the medium. After a few days the medium should be dry and you will see how it goes, and we'll be around to help again. Keep us up-to-date, and happy growing 👊