Thanks everyone for your opinion! What I'm afraid of is as
@CaliFlowers says the lack of light. It's on a shelf near the window, but this days are cloudy, badly cloudy, with dark clouds and no lights.
It's in vermiculite also, and it's not being fertilized in any way. Jus water, I check every day ( two times a day) if the vermiculote is still wet.
My biggest fear of growing indoors is about light, the house is a bit "dark". But, going toward autumn and winter, it wilbe somewhat dark even outside.