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FishFreshwaterBeginnerSemi aggressive

Oyapock Eartheater

Geophagus camopiensis

A rarely seen eartheater with elaborate mouthbrooding behavior and real personality.

Oyapock Eartheater
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© Google Gemini 2.5 Flash Image · AI-generated

About

The Oyapock Eartheater (Geophagus camopiensis) is a cichlid from the Oyapock and Approuague river drainages of South America, where it inhabits rocky river stretches with sandy-rocky substrates, particularly in calmer areas near cascades during low water periods. It belongs to the G. surinamensis group and can be identified by the absence of vertical bars on the flanks, a prominent dark midlateral blotch, and a caudal fin marked with pale blotches rather than horizontal bands. Males develop long filamentous extensions on the caudal, dorsal, and ventral fins. This is a species rarely seen outside specialist circles, occasionally available through dedicated breeders rather than mainstream retail. While it carries a reputation as one of the less peaceful members of its genus, it poses no real threat to fish of any appreciable size, and a wide range of similarly-minded tankmates will work well with it. It is strongly social and should always be kept in groups of at least five to eight individuals. Smaller numbers tend to produce nervous, poorly-settled fish, with weaker specimens bearing the brunt of aggression from dominant tank mates. Breeding follows a larvophilous mouthbrooding pattern where eggs are initially tended on a flat surface before the female takes the newly hatched fry into her mouth, with the male's involvement varying considerably between individuals. Despite its territorial tendencies, this is considered a manageable species for keepers with basic cichlid experience.

Frequently asked questions

How big does the Oyapock Eartheater get?
The Oyapock Eartheater reaches about 4–8" as an adult.
What size tank does the Oyapock Eartheater need?
A minimum of 53 gallons is recommended for the Oyapock Eartheater, with more room needed for a proper group.
What water parameters does the Oyapock Eartheater need?
The Oyapock Eartheater does best with a temperature of 72–82°F, a pH of 6–7.5, hardness around 2–12 dGH.
Is the Oyapock Eartheater aggressive?
The Oyapock Eartheater is semi-aggressive. It can work in a community with careful tankmate choices and enough space.