m0useanswered grow question a year ago good advice abut pests below. It does look like some mild thrip damage, The trips I have seen on my plant tend to be dark black brown or a yellow/cream colour.
Also shiny green glossy leaves is a sign of to much N, might need to adjust your feeds as well. I also see some tacoing of the leaves. make sure your temps are not to much, 28c max day time and 18-20c is ideal night time temps. coukld just need more air circulation in the tent to correct this.