what i was saying it that this is most likely from the plant lacking a specific element or from the ph being out of whack. wait and see if ANY MORE leaves get holes in them. if they do and your ph is not really high or really low then they need more food. micro nutrients. not sure which one specifically. but look on the back of the label for the plant food you are using. whichever one has the most elements listed on the back use more of that one.