When setting up an in-tank heater for an aquarium, make sure to let the heater sit for a half-hour before turning it on. Discover which fish need a heater in their tank with help from the manager of a pet store in this free video on aquarium maintenance and fish tanks.
Expert: Ashlee Bio: Ashlee has been the manager of Pet Planet in Riverton, Utah for the last three years. Filmmaker: Michael Burton
