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![](/images/template_images/center_bar/left_bg.jpg) |
![](/images/clear-pixel5x5.gif) |
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Determines the water volume
capacity, in gallons, of
your aquarium or sump. For
a more percise calculation,
be sure to measure the inside
of the aquarium. |
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![](images/clear-pixel5x5.gif) |
Estimates the amount of
sand required to create
a sand bed to a certain
depth in an aquarium or
sump. |
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![](images/clear-pixel5x5.gif) |
Determines illumination percentage and where the moon is within the lunar cycle. |
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![](/images/template_images/center_bar/right_bg.jpg) |
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