I'm still unexperienced in troubleshooting plants but maybe check the underside of the leaves too just in case the culprit is below. Could be a fungus or some kind of insect.
Will it looking like it could be or needs to be fed some more nutrientsI'd like to see the whole plant this would help with my diagnosesKnow what you've fed'em how old you know just the basic info
Looks like sometype of bug dammage but dosent look bad at all. Mine have the same marks but just hit her with neem oil every week or so and you should have nothing to worry about!