Page 3 - AquaRay

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Light, in the form of the sun, is the source
of all energy on our planet.
Along with water it forms one of the
basic requirements for life to flourish.Via
photosynthesis, light provides food for
plants and corals, as well as oxygen for
animals to breathe. Rather more
obviously, light also allows us to see, and
can be used to alter and improve the
appearance of objects.
In the context of an ar tificial habitat such
as an aquarium, light should be one of
the most impor tant considerations. Not
only does it provide nutrients for
optimum plant and coral growth, but it
can also be used to make colours stand
out and even to create a dramatic visual
effect within the display.
1
1 Why do we need
light?