Small random markings like that is usually just damage from moving the plant around/training. Either that or water/nutrient mix left on the leaves and light hitting it. That's my guess. If the damage isn't appearing elsewhere then it's probably nothing to worry about.
Small random markings like that is usually just damage from moving the plant around/training. Either that or water/nutrient mix left on the leaves and light hitting it. That's my guess. If the damage isn't appearing elsewhere then it's probably nothing to worry about.