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Lighting Chapter 2: About Fluorescent Tubes

Page 2 - The Reef System Wattage Rule of Thumb Formula

The general rule of thumb for a reef system calls for 3 to 5 watts per actual gallonage of water. A classic example of this is best visualized using the industry standard, a 55 gallon glass aquarium.

Using the above "Rule" this reef should have a minimum of 165 watts to 275 watts in order to provide the intensity necessary for photosynthesis to take place within marine organism's polyps or tissues. Here are few more examples of reef system wattage requirements using the "Rule".

3 to 5 Rule of Thumb Formula Examples
3-5 Watts X 55 Gallons = 165 to 275 Watts
3-5 Watts X 75 Gallons = 225 to 375 Watts
3-5 Watts X 150 Gallons = 450 to 750 Watts

From these simple examples you can see how easy it is to determine the wattage requirements for your particular reef aquarium needs.

Next Page > Understanding Tube Wattages - NO vs VHO
Previous Page < Introduction to Chapter 2
Page > 1,2, 3, 4, 5, 6, 7

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