Fire is compatible with air but the interaction of the ruling planets — Mars for Aries and Uranus for Aquarius — can generate tremendous power, so much will depend on whether it is used constructively. Aquarius will not dampen the initiative and independence of Aries, while Aries appreciates a friend in Aquarius. Aries loves anything new, so is interested in the Aquarian's off-beat ways. But, if Aquarius becomes unpredictable at an inopportune moment, Aries will be irritated and impatient.