Pisces is an Astrological sign, which originated from the constellation Pisces, and is the 12th sign of the zodiac. The astrological sign of Pisces is represented by a pair of fish that are swimming in opposite directions, but remain held together at the tail by a cord. Pisces is considered a "negative" or feminine sign, its element is water, and its Quality is Mutable. Pisces is the ruler of the astrological 12th house.
Pisces has been traditionally ruled by the planet Jupiter, but since its discovery, Neptune has been considered a modern ruler of this sign. Some astrologers mostly use one to the exception of the other, but some consider them to be co-rulers of this sign and essentially use both [see Domicile astrology].