a plant that size only requires water ever 3 days or so. not a constant drip, not daily watering. every other day, w/ just enough t keep damp 2-3" deep into the media...owerwater or nuteburn?
also, does not require fertilizer every watering. maybe 1x per week, until more true leaves & nodes grow.
otherwise, may simply drown roots w/ too much water/nutes, etc...
they do require some dryness - as that gives room for oxygen.