Guide to Aquarium Lightings

Aquarium lights illuminate and regulate water temperature in aquariums. They maintain the right temperature required by the particular fish species and aid in photosynthesis in aquatic plants. They are usually controlled by light timers that imitate the natural cycle of outdoor light to maintain the creatures’ body functions. They are installed on the aquarium ceiling and connected to an AC power source.

Incandescent lights

• Incandescent lights come in small bulbs usually installed in rows along the ceiling.
• They are fairly cheap and available in many colors and wattages.
• They produce a high amount of heat and require adequate ventilation to regulate temperatures.
• They are commonly used in small aquariums.

Fluorescent lights

• Fluorescent lights come in long glass tubes and are usually installed with hoods.
• They produce very little heat, have a longer bulb life, and cost less to maintain than incandescent lights.
• They are often combined with other bulbs to create color and lighting effects.

Compact lighting

• Compact lights are thinner fluorescent tubes bent into U-shapes and fitted into hoods.
• They produce more intense light that effectively penetrates water, making them ideal for deep tanks.
• They have relatively long bulb life. Some models have an indicated bulb life of two or more years.

Metal halide lights

• Metal halide lights create light ripples on the water, producing a natural sun-like effect.
• They also distribute heat around the water.
  
• They sometimes require a chiller to keep the water at a safe temperature.
• They are available in different forms, including single bulbs and fluorescent tubes.

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