I think (depending on how often she is having a bottle) you give them solids at like, an hour or hour and a half after their bottle. I would never stop half way through as milk is still their most important "food" at the moment until they are one.

As for when you increase it - I'm sure she will let you know if she is hungry for more!!

I can't help much more, I've forgotten most of it from when DS started solids, and I did BLS with DD so didn't do cereal and stuff.