Pineapple Poison

Hello everybody, the pictures show a split situation: the buds looks good but the rest of the plant scream to overfeeding. Infact at the third day of the week i find an extra water in the saucer so i control the EC and i see 3.5 mS/cm. This value is clearly too high and i try to recover the plants by watering everyday with 1 L demineralized water adjust with pH-down. I just hope to see a better situation in a week. 🙏