AsNoriuanswered grow question 3y ago first one is mechanical damage in crowd or first sign of nitrogen excess
second is thrips maybe, guessing some pests
if some bugs, use natural predators .
in UK we have that shop, find whats working and try to buy that at yours
https://www.dragonfli.co.uk/collections/nematodes?src=GAds&gclid=CjwKCAjwp9qZBhBkEiwAsYFsbxk26MCuPNjxmS9e0KCRun2hRMwhGlfvawSsFHZEh8dA2HflNSQ_DRoCIXQQAvD_BwE
sticky traps, good watering regime, tidy grow area is a MUST anyway now, not only as prevention in future