At the moment she doesn't need any other liquids if she is drinking the recommended amount of formula or if you are still exclusively breastfeeding. Once you start introducing solids (around 6 months) you can also introduce 30 - 60 ml of boiled water (cooled down). At around 8 months you can start to give her some Rooibos (no sugar or milk) as well if you prefer, together with water. I don't like tea and neither does my baby, she refuses to drink it, so she only drinks water and sometimes VERY diluted vegetable juice, however, she is 2 weeks shy of 1 year.