The first leaves didn't develop much but the phyton was thick and long outside the cube... let's see how the first week of vegetative behavior behaves.
At the end of the first week it seems Gioia is growing a bit faster. After adding a fan the trunk has begun to grow stronger.
The only thing that confuses me is that it has a very light color.
Normal...not quite but definitely not a problem my friend. It's just a pigment mutation.
If you look at my lilac diesel diary you'll see she has quite the case of it as well.
Some plants grow out of it. Some don't. It's definitely not your light.
Hope this helps.