Hi Velosa,
In my opinion Artocarpus Altilis is not the plant suitable for pot growing. I grew one for 4 years outside with more or less protection in the winter months. Keep in mind that is a fast grower, it likes water and fertilizer and it needs high temps and - very important- high humidity. The temperature should be up to 90*F and no lower than 65*F for active growing. The plant will stop growing at temps below 60*F and it will die soon at temps below 45*F. It needs plenty of sun, which is really hard to provide inside. This is a true ultratropical tree and the humidity in the air shouldn't be below 50% for more than a week or so.