Sobrefertilización

I agree with m0use here that it looks like it's been overwatered and has some nitrogen toxicity (clearly seen in the color of the two photos in the middle and the clawing leaves in the last photo)... Overwatering is not how MUCH water you give the plant at any one time but rather the state of being constantly wet. Let your soil dry out between waterings/feedings... and when you give it plain water, give it enough so that you're getting some run off from the bottom of the pot... this will help eliminate nutrient and salt build up in your soil. You don't tell us what nutrients you're using or in what amounts so I can't give specifics here but will suggest you look at the nitrogen content of each and cut back on the ones that are high in nitrogen. Plants in flower need less nitrogen than plants in the veg state... The grow is looking pretty good to me and I think just some minor tweaks - don't water until the soil is dry and cut back on the nitrogen - will be good! Good luck!