Geophagus (Mesops) agassizii Steindachner, 1875, Curupira, Codajas, Rio Poti de Sao Joao, Lago Maximo, and Lago Manacapuru, Brazil.
OTHER COMMON NAMES
German: Agassiz Zwergbuntbarsch.
Maximum length 2 in (5 cm). Dorsal and anal fins somewhat elongate, caudal fin spade shaped. Head somewhat rounded. Female coloration is lemon yellow; males brilliantly colored with yellows and blues anteriorly, a dark midlateral band, and red, black, and white bands on posterior fins.
Amazon basin along the Amazon River from Peru to the Capim River in Brazil.
Clear, black, and whitewater rivers.
Males exhibit ritualized
s in defense of their territories; females in the harem of a single male compete for his attention.
FEEDING ECOLOGY AND DIET
Feeds on aquatic macroinvertebrates.
Eggs laid in caves, or in flowerpots in aquaria; they hatch in about four days. Practices harem polygyny.
Not listed by the IUCN.
SIGNIFICANCE TO HUMANS
Owing to its brilliant colors and peaceable demeanor, this fish is popular in the aquarium trade.
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