Leave look like they are being eaten

Looks like it could be a couple different things, but I suspect it’s a combo of overwatering and over feeding. Or Possible ph issues in soil and/or water, nutrient buildup in soil if you were over feeding maybe too. I would double check all these things and I’d let it dry out completely bone dry then feed just water and see how it goes if you can’t nail down what it is. Hope this helps. Cheers 💨