tiny holes

1st grow ever. And I Just wanted some verification on this diagnosis. Day 13 of flower Indoor grow silver haze Auto, and great white shark(photo). Grown in 60% peat moss 40% perlite, 5.5 airpots. Feeding the fox farm trio at half strength every other watering and Cal mag on water only days (2ml...

Hi, Would appreciate if a experienced grower would know what it is thats causing the issue prevalent on my plant. One of the pictures with very lights marks was from when plant was 1 week from seedling and I first noticed. Pictures where its more obvious is is 3-4 days from then and 10 days...