[SNOWBALL138]

your bankroll requirements are determined by 3 things. Your risk tolerance, your winrate, and your standard deviation. If increasing the amount of tables you play negatively affect these things, then you need a larger bankroll.

I would try to have about 800 dollars to play 1/2 limit hold em. If you have less, you can try to build up to 800 dollars playing 1/2, but be ready to switch down to .5/1 if necessary.