Red Poison

Too frequent irrigation that caused the wilting and if you fertilize use only 1/5-1/4 of the recommended dosage at this stage of growth. Irrigate your plant until there's at least 20-30% of it as runoff and irrigate only when the top 5cm of the medium is dry! the roots need Oxygen to develop and by watering too often you limit the amount of Oxygen there's in the medium. Don't forget to check "EC" and pH of runoff as well to determine the medium fertility and condition. Hope this helps! Good luck and happy growing :)