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Arroyo cichlid (Theraps irregularis) — Cichlidae

Arroyo cichlid

Theraps irregularis
Family: Cichlidae
LC · Least Concern

The Arroyo cichlid (Theraps irregularis) is a freshwater fish of the family Cichlidae that grows up to 19 cm.

Length
19 cm
Water
Freshwater
Diet
Omnivore
Behaviour
Small groups
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Range
Central America; fast-flowing rocky upper reaches of rivers.
Edibility
Not eaten

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Description

The irregular cichlid is a cichlid (Cichlidae) from Central America. The species grows to about 19 cm and has an elongate, laterally compressed body adapted to life in fast-flowing water. It occurs only in the fast-moving, rocky upper reaches of river valleys in the border region of Mexico and Guatemala. There it grazes the aufwuchs: the layer of algae and small invertebrates on stones, from which it obtains its food. As a cichlid it is a caring brood-tender that lays its eggs on a hard substrate and guards them. The species is harmless to humans.

Frequently asked questions

How do you recognise the Arroyo cichlid?

The Arroyo cichlid has a torpedo-shaped body, is mainly brown and shows a vertical stripes pattern. Inhabits only fast-flowing rocky water; grazes aufwuchs from stones; substrate brooder.

Where does the Arroyo cichlid live?

The Arroyo cichlid lives in fresh water and is mostly found around mixed bottom. Central America; fast-flowing rocky upper reaches of rivers.

How big does the Arroyo cichlid get?

The Arroyo cichlid grows to a maximum of about 19 cm.

Is the Arroyo cichlid dangerous to humans?

No, the Arroyo cichlid is harmless to humans. None required: this species is harmless to humans.

Is the Arroyo cichlid edible?

The Arroyo cichlid is not usually eaten.

More photos

Arroyo cichlid (Theraps irregularis) — Cichlidae — 2
iNaturalist ((c) Leoš Smutný a Antonín Horáček, some rights reserved (CC BY-NC))

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All data

Identification

English name
Arroyo cichlid verified
Scientific name
Theraps irregularis
Family
Cichlidae

Appearance

Size class
Medium verified
Max length (cm)
19 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Brown
Pattern
Vertical bars
Tail shape
Straight
Mouth position
Inferior (downward)
Lips
Thick / fleshy
Barbels
No sourced
Dorsal fins
One continuous
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Mixed bottom sourced
Natural range
Central America; fast-flowing rocky upper reaches of rivers.
Origin
Native sourced

Behaviour & biology

Diet
Omnivore sourced
Diet (detail)
Aufwuchs: algae and small invertebrates from stones sourced
Social behaviour
Small groups
Territorial
Yes
Reproduction
Separate sexes sourced
Sexual dimorphism
Yes
Seasonality
Present year-round in its habitat; no pronounced seasonality known.
Special features
Inhabits only fast-flowing rocky water; grazes aufwuchs from stones; substrate brooder. sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed.
Regulations source

Safety

Danger to humans
Harmless sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Theraps

More from the family Cichlidae

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