Starting cereal.

Mercedes • 👨‍👩‍👦‍👦

We just had my baby's 4 month appointment. His doctor said he was ready to start cereal. I breastfeed but I only make just enough for him so I dont have any extra to mix with it. On the cereal package it says for infants to mix it with breastmilk or formula and for toddlers mix it with water/juice. is it unsafe to mix it with water for a 4 month old? or will it be okay?