Terp1answered grow question 3y ago Looks really good. 👌 If the plants aren't showing any other symptoms (they always come when there's, for example, a deficiency or a pH lock), then it's REALLY just the genetics.
If you can spot other symptoms, we would need to check further if it's, for example, a phosphorus deficiency or just light stress. But this looks perfectly fine to me at first glance.
happy gardening my friend 💪😎