Hojas quemadas

It may not be either...if it were tips burnt I'd say excess is happening. But with the whole edges discoloring, I would lean more towards a possible ph fluctuation (too high or low). The leaves do look like they're cupping slightly too, and that's usually high heat. Do you have some specifics we can go off?

Looks like a nutrient burn, maybe try going half strength.

You have a potassium defenciency starting to rear it's head. One way to combat a lack of potassium is by adding a fertilizer that has potassium to your store-bought fertilizer (if you are already using it). You can try adjusting the fertilizer mix you are using or add a water-soluble potassium additive as well. If you would prefer an organic method, you can also use wood ashes, kelp meal, granite dust, or sulfate of potash. You should see results within a week. Hopefully this helps. Happy Growing! 🤟😜