If you aren't noticing a difference in behaviour you can leave it, but generally as they increase in weight the symptoms start coming back.

The minimum DAILY dose is worked out by
weight X 5 divide 15=

The maximum DAILY sose is worked out by
weight x 10 divide 15=

that amount is in ml's and then you can divide it by however many times you are giving it. Good luck! With Parker I used to adjust it every two weeks, but some babies do fine without adjustment.