it's burnt to shit from the mg
yes, you should see some good new growth, then you can give it food at 1/4 strengthSo should I just keep watering with no nutrients?
Burnt, MG soil with MG nutrients = disaster
IMO get it out of the soil and into potting soil with no nutrients and water until it's got new growth that is not burned.
regards,
Nice recovery! That looks great now. Don't overnute and it'll grow faster.