There is no Greek mythological figure by the name of Aquarius. The constellation is supposed to represent Ganymede, who was not Zeus's son, but a Trojan prince abducted by Zeus to be the god's cupbearer and lover.
Aquarius was Ganymede, the young boy kidnapped by Zeus. Zeus sent his eagle, Aquila, to snatch Ganymede out of the fields where the boy was watching over his sheep.
The son of Zeus was Hercules
Hercules is the son of Zeus and Alkmene
yes Hercules is Zeus's son
Zeus had many sons. His most popular son is Hercules.
The favorite son of Zeus was Heracles.
Hermes, son of Maia and Zeus.
The favorite son of Zeus was Heracles, the favorite daughter of Zeus was Athena.
The favorite daughter of Zeus was Athena. The favorite son of Zeus was Heracles.
If by demigod you mean a mortal who had an immortal for a parent, there was Heracles, son of Zeus; Perseus, son of Zeus; Orpheus, son of the Muse Calliope; Achilles, son of the sea nymph Thetis; Deucalion, son of the Titan Prometheus; Phaethon, son of Helios; Asclepius, son of Apollo; Minos, Sarpedon, and Radamanthus, sons of Zeus; Tantalus, son of Zeus; Helen, daughter of Zeus; and Pollux, son of Zeus.
No, Perseus is not the son Poseidon. Perseus was the son of Zeus.
The water bearer is a male. In Greek mythology it represents either Ganymede (the son of the Trojan king Tros, taken to Mount Olympus by Zeus to act as a cup-carrier to the gods) or Deucalion (the son of Prometheus who built a ship to survive a flood).