Editing Cardinal tetra (section)

===Diet===
The cardinal tetra forages in areas of slow-moving, shallow water. It is predominantly predatory, feeding on tiny animals found on underwater plants, roots, and [[leaf litter]]. Creatures commonly eaten include the larvae of [[Chironomidae|chironomid]] midges and microcrustaceans such as water fleas ([[Cladocera]]) of the families [[Moinidae]], [[Macrotrichidae]], and [[Daphniidae]], and [[copepod]]s of the family [[Harpacticidae]]. Other organisms eaten include other fly larvae, insect eggs, [[rotifer]]s, and [[testate amoebae]].<ref name=walker2004>{{cite journal|last=Walker|first=Ilse|date=2004|title=The food spectrum of the cardinal - tetra (''Paracheirodon axelrodi'', Characidae) in its natural habitat|journal=Acta Amazonica|volume=34|issue=1|pages=69–73|doi=10.1590/S0044-59672004000100009|doi-access=free}}</ref>