GrowerOGanswered grow question a month ago Hello mate, these sings seems more like a burn caused by the water fallen on the leaves, she is too little to soffer for the magnesium but you could get low ou pH sloution unitl 6.2.
I see from your diary that you have the huidity level too low for the vegetative phase, you should have 60-70% otherwise the transpiration of the plant becomes too high.
Good luck and happy journey!