Guys, what do you think? I think there must be som...

Hey there so I just have a couple thoughts, a seedling that small in a 2 and a 1/2 gallon pot is pretty big if you're watering the soil thoroughly it will take a long time to dry out. Something about having less water in the soil forces the roots to grow and search for water. So possibly just moisten the soil around the seedling, not the entire pot otherwise add more drainage holes and up the ventilation. If you decided to use less water each time then put a plastic bottle over the plant to keep the humidity up, often the plants that don't have many roots yet take in most their moisture through the leaves. I have also read that the XL or XXL seeds often have a longer grow cycle then regular autos. Keep up the fight, don't give up! ✌️