Have you ever seen this?

[Joker]

Ok, hope someone can tell me if I should worry. My two plants are LSD they are about 2 weeks from seed. They look over all very healthy but I noticed that one had two small holes in a leaf, so I clipped the same leaves from both and the one with holes has a purple tinted underside. There is no sign of pests.
I should also add that it's a dwc set up, using GH Trio. A 400 watt mh/hps

[Canyon Grower]

Neither of these conditions would concern me unless it was pervasive and was actually causing leaves to die. I wouldnt lose sleep over it 😁

[starramus]

You said no pests, but looks like a bug bite. You got any bugs around there with water wings?

[Joker]

No sign of any, in or around the tent

[St.buds]

I had the same issue a few weeks ago and something choped a couple of my leafs so i was looked for the fucker and looking at my leafs no more bites no sign of bug/bugs so something ate and didn't lime it and moved on hope this is what's going on with yours

[Joker]

If you can zoom it close enough you can see a faint yellow streak below one of the holes, it almost looks like the holes just opened up from one of the yellow streaks.
couldn't find a match on the main site sick plant page

[St.buds]

To add to this have u maby spilt any nutes on them?

[LaughingBuddha]

Just relax man. Could be anything and looks like nothing.