Tomix001answered grow question a month ago These are aphids. You can quickly get Spruzit or another plant pest control product, preferably something organic for vegetables. If you want to be 100% sure, invest in a fogger. If you’re unsure what that is, RAM offers something like that. With it, you can regulate the humidity or simply use water. For my pest control solution, I mix 1L of water with 10ml of product. Pour it into the tank and place the fogger in the tent at the end of the light cycle. Fill the tent with mist once, and make sure it's dry again before the start of the light cycle—otherwise, you might get burn damage.
Alternatively, use a spray bottle and gloves. Spray each leaf thoroughly, both from the top and bottom, and ideally wipe them off. Always remember: anything you touch with the gloves afterward will carry aphids!
Best regards,
Tomix👽