That's about all Xander took when I first introduced the bottle Shell... within a week or so he started taking 200mL (which is the usual recommended amount). About the time he started taking the full 200ml he dropped the mid arvo breastfeed, and only had milk (either BF or FF) after each main meal (3 times a day). Congrats on finally getting Ash to take a bottle of any sort... which one did you end up having success with?