Can any Help identify what is the Problem with this leaf

Just going off that leaf alone, it almost looks like thrips.

Most of the time you can't tell what the problem is just by a picture of a leaf. We would need a lot more information in order to properly diagnose:

What strain is it?

Is it in Veg or Flower stage?

If in Veg, for how long?

If in Flower stage, For how long?

Soil, Soilless or Hydro?

If soil/soilless, what is in your mix?

If soil/soilless, what size pot?

Size of grow space (LxWxH)?

Make and model of grow light?

Temperature in the environment?

Humidity in the environment?

PH of medium or reservoir?

PPM of medium or reservoir?

Any Pests?

How often are you watering?

Type and strength of nutrients used?

So ITS an Indoor Grow i usw only biobizz bloom at the Moment, IT has only affected 2 leafs.