Tropical Fish Word of the Day: Diatom
Expand your tropical fish vocabulary with the FishChannel.com Tropical Fish Word of the Day.
Diatom: (n.) Diatoms are unicellular algae and a common type of phytoplankton. Their cell wall is made of silica, and they usually consist of two shells with a split between them (this anatomy gives them their name).
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Tropical Fish Word of the Day: Diatom