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Fish Freshwater Care: easy Semi-aggressive

Saddle Cichlid

Aequidens tetramerus
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Other names: Tetramerus, Aequidens, Acara tetramerus
Group: American cichlids · Family: Cichlidae · Origin: South America — Amazon basin (Brazil, Peru, Colombia, Ecuador, Bolivia)

A hardy Amazon acara reaching 20 cm, recognized by the saddle-shaped dark blotch in the middle of its body and its green–blue shimmering scales. Kept as a pair; territorial during breeding.

Will it suit my tank?

Last updated October 16, 2026

Temperature
24–30°C
pH
6–7.5
Hardness
2–12 dGH
Adult size
20 cm
Minimum tank size
250 liters
Lifespan
8–12 years
Social structure
Pair
Male–female ratio
Kendiliğinden eşleşen çift
Swimming zone
Middle
Diet
Omnivore
Breeding
Substrate spawner

Water parameters

Temperature24–30°C
pH6–7.5
General hardness (GH)2–12 dGH
Recommended range
Eats small fish Eats shrimp Suitable for planted tanks

Overview

October 16, 2026 · Suggest an edit

The saddle cichlid is a hardy, adaptable acara that lives across a large part of the Amazon basin. Its olive–brown body is covered with blue–green shimmering spots; in the middle of the body there is a large dark blotch resembling a saddle. Males can reach 20 cm, while females stay slightly smaller. It can be thought of as a larger relative of the blue acara (Andinoacara pulcher).

Tank Setup

October 16, 2026 · Suggest an edit
  • At least 250 liters and 120 cm of length for a pair.
  • Roots, flat stones and sand substrate; tough-leaved plants can hold up.
  • It adapts to a wide range of values; a 30% water change weekly.
  • Dim light and floating plants bring out its colors.

Diet

October 16, 2026 · Suggest an edit

Omnivorous. Make cichlid granules the staple; vary them with frozen bloodworms, mysis, shrimp and vegetables. One or two meals a day are enough; excess food degrades water quality.

Behavior and Compatibility

October 16, 2026 · Suggest an edit

It usually gets along well with fish of similar size; during breeding it resolutely defends the area around the eggs and may eat small fish that fit in its mouth.

Good companions: severum, festivum, Geophagus species, large tetras, silver dollars, plecos.

Avoid: small fish such as neons, shrimp, very aggressive Central American cichlids.

A short profile for this species

The Saddle Cichlid page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.

Tank mates

This list is calculated automatically from the species profile and grows as new species are added to the catalog. Try it in the planner for a definite answer.

Usually compatible

Should not be kept together

Hobbyist notes

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Change history and contributors
  1. Page created · October 16, 2026