Alenquer Red Altifrons Eartheater Cichlid (Geophagus Altifrons)

Alenquer Red Altifrons Eartheater — Geophagus altifrons
Graceful sand-sifter of the Amazon

The Alenquer Red Altifrons Eartheater is the definition of controlled elegance — a large, intelligent South American cichlid prized not for aggression, but for behavior and presence. Collected from the Rio Xingu / Alenquer region of Brazil, this variant develops stunning warm tones of burnt orange, copper, and red across a metallic pearl-spotted body, contrasted by electric blue iridescence in the fins. Under proper lighting and dark substrate, the colors glow like embers in moving water.

Eartheaters earn their name from the way they live. Instead of chasing tank mates, they constantly sift mouthfuls of sand, filtering out micro-foods just like they do in the wild. This creates a mesmerizing, natural rhythm — the fish is always working, always interacting with its environment. A group moving together across a large tank feels more like watching a nature documentary than an aquarium.

Despite reaching 10–12 inches, Altifrons are remarkably composed fish. They establish hierarchy without chaos and coexist beautifully with other large but peaceful species such as rays, arowana, severums, and larger characins. They are one of the best choices for building a true South American biotope or adding movement and life to a monster community aquarium without constant fighting.

Mature specimens develop extended finnage, thicker lips, and deeper coloration, especially males displaying to females. During breeding they become attentive parents, guarding territories and raising fry while still maintaining their calm demeanor.

The Alenquer Red Altifrons isn’t about intimidation — it’s about balance.
At Predatory Fins, this is one of our favorite “big peaceful” show cichlids: a fish that fills space with motion, color, and natural behavior rather than aggression.