Changing Tommy Tippee bottles to MAM bottles

[Littlecat]

Hi,
My baby is 6 months old and I am changing bottles from tommy tippee ones to mam as its bpa free. however, she doesnt seem to like it after half a feed. has anyone had experience on when is the best time changing to feed so she might take it better?
thanks!

are you changing teats too?

yes as the tomy tippee, closer to nature ones i am using does not fit in the mam bottles she seems to like the tomy tippee ones, closer to nature;

is there another brand of teat that is similar that i can fit in the mam bottles?