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Algae |  |
Phylum: Chlorophyta, Class: Ulvaceae
Range: Tropical Seas
Diet: Light
Difficulty in Captivity: Easy
Natural History: Sea Lettuce is found in the littoral zone (beginning just below the low tide mark) growing on rocks and other algae. It is very prolific in polluted zones where nitrates are higher than normal. It grows in sheets that are two cells thick.