Getting impatient but when...

At what age should the plant be removed from the small 6 inch pot to a larger one?

I started with 6 inch pots and the plants are now 2 weeks old. I have 2 gal pots for the next stage, used into flowering untill I find out the sex and then will move the females into 5 gal buckets.

no particular age...transplant when it becomes rootbound or you see roots coming out of the drainage holes...i water thoroughly the day before and have everything ready once the ball is removed. if your 6" pots are same as mine, they should be good through sexing