Hi, there are a few Reasons Plants are clawing. dont have to be toxicity, If you overwater your plants clawing too, on underwatering they are clawing, if you have root problems they are clawing. What sounds the most possible thing to you=?Iam tendng to overwatering, if your datas with 2l in 24hours are right. Solutions. repot your plant and look for the Roots look how the medium on the bottom of the pot is, If medium is wet, or swampy transplant your Girl and give her dry feets, if roots are brown and smelly, you got to come to action( more in the comments)A Plant in that size dont need more than 200-300 ml for 24 hours . Ok give me or another grower feedback to look further