ʻOku lahi ʻaupito ʻa e ngaahi faʻahinga ʻi he puleʻanga tuʻí ni, neongo ko e konga lahi taha ʻoku siʻisiʻi ʻaupito, ʻoku ʻasi pē ʻi he meʻa fakaʻata efu. Ko e siʻi ngaahi faʻahinga mahuʻinga ange, ko e limutahi ia (lea fakapilitānia: algae):