According to different sources, multiple nymphs are credited with caring for the infant Zeus. The primary nymphs mentioned are Adrasteia and Ida.
Adrasteia and Ida
Apollodorus states that Rhea entrusted the infant Zeus to the nymphs Adrasteia and Ida, daughters of Melisseus, to nurse. They are said to have fed him with the milk of the goat Amalthea. Hyginus also mentions Ida and Adrasteia, sometimes identifying them (along with Amalthea) as daughters of Oceanus, while others say they were daughters of Melisseus.
Amalthea
While primarily known as a goat, Amalthea is sometimes referred to as a nymph who cared for Zeus. She provided Zeus with her milk and is strongly associated with his upbringing.
Summary
Therefore, the nymphs who took care of Zeus were mainly Adrasteia and Ida, daughters of Melisseus, with Amalthea, often depicted as a goat but sometimes as a nymph, playing a crucial role.