Yep I would go down an oz, for couple nights, then down another oz. Some people dilute until its just water.
So 90mls tonight
2 nights later 60mls
2 nights later 30mls
2 nights later stop
That make sense? Solids are not too important atm, so dont worry if they dont increase loads, milk is main until 1 year so its fine
You will know if shes getting too much solids due to milk intake decreasing, and then you can kind of fiddle the amounts of food accordingly
hth xxxxxxxxxx