Pets & Animal Pets Fish

How to Change the Light Bulb in a Fish Tank

    • 1). Turn off the fish tank light and unplug the cord form the electrical outlet.

    • 2). Place one hand on either side of the light ballast, which sits on top of the fish tank, and lift it off of the tank.

    • 3). Turn the light upside down and place it on a flat work surface such a table or the floor.

    • 4). Remove the existing light from the light fixture. If you have a standard incandescent light, compact fluorescent light, LED or metal halide, simply grasp the bulb in your hand and turn it counterclockwise to remove it. If you have a fluorescent tube light, grasp both ends of the light bulb tube with your hands and pull the bulb away from the fixture.

    • 5). Discard the used bulb.

    • 6). Insert a new bulb into the light ballast by reversing the steps taken to remove the old one.

    • 7). Pick up the light fixture and turn it over so that the light bulb faces downward. Place the light fixture back on top of the aquarium.

    • 8). Plug the light's electrical cord back into the wall and turn the light on.

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