* Zodiac sign Pisces: This is an astrological sign associated with people born between February 19 and March 20.
* Constellation Pisces: This is a group of stars in the night sky that form a pattern, representing the fish.
* Taxonomic Class Pisces: This is a diverse group of aquatic animals that includes fish with bony skeletons, cartilaginous skeletons, and jawless fish.
To answer your question directly, Pisces live in aquatic habitats. This can range from fresh water lakes and rivers to saltwater oceans. The specific habitat of a fish within the class Pisces depends on the particular species.
It's important to distinguish between the different meanings of "Pisces" to understand what kind of habitat you're interested in.