Anyone know what this is?

Each set of leaves has had this. Any ideas or suggestions?

Need Pictures.

Sorry just added

You’ve got a calcium deficiency. Do you know your Ph?

Ah ok. It is one strain. All the rest are fine. Should I add calmag and how much?

The PH is 6.5

Yes, add some Cal Mag. She’ll be fine. Usually it’s a teaspoon per gallon of water, but you should read the directions on the bottle.

Thank You :ok_hand: