- Aquarius’s traditional ruler is Saturn. The modern ruler is Uranus.
- Pisces’s traditional ruler is Jupiter. The modern ruler is Neptune.
- Scorpio’s traditional ruler is Mars. The modern ruler is Pluto.
Some astrologers only look to the traditional ruler, some use both the modern and traditional rulers, some use only the modern ruler — it’s up to you.
- Aquarius covers the 2nd house cusp, therefore Saturn and Uranus rule the 2nd house.
- The sign Pisces is completely contained within the 2nd house; it does not touch the 2nd or 3rd house cusp:
Pisces Intercepted in the 2nd House. This 2nd house example has 2 rulers and 2 co-rulers: Saturn and Uranus are the rulers of the 2nd house cusp in Aquarius while Jupiter and Neptune rule the Pisces interception.
In the chart above Saturn and Uranus are the primary rulers of the 2nd house and most important, while Jupiter and Neptune as co-rulers of the 2nd house are of secondary importance.