Q: When Zapping A Card in Aquarius, are you allowed to create an “island”: an isolated card not attached to the rest?

A: It is fine to create an “island.” Furthermore, when playing a card reconnecting the island to the rest of the cards, the card you play still only has to have a match on one side, just as usual (so it can connect to the “island,” or the “mainland,” and is not required to match both). Of course, connecting more than one way may still have its advantages, it’s just not required.