Can i change my 6 month old babys formula feed from nan pro 1 to nan pro 2?..how much ml will a 6 month old require for a feed

By 6 months , a baby: typically consumes 6 to 8 ounces (180–240 ml) at each of four or five feedings in twenty-four hours. Since NAN PRO 2 is sold in the U.S., it must have FDA approval for use in 6-12 month old babies. See www.healthychildren.org/English/ages-stages/baby/feeding-nutrition/Pages/Amount-and-Schedule-of-Formula-Feedings.aspx for advice on nutrition & other topics.