
Source: Wikimedia Commons
Cleithracara maronii
A small cichlid whose English name comes from the keyhole-shaped dark blotch on its pale tan flank; a black bar through the eye is another marker. Exceptionally peaceful and shy for a cichlid, it suits community tanks with small fish.
Cleithracara maronii is a small cichlid of Trinidad, the Orinoco delta and the rivers from the Barima in Guyana to the Ouanary in French Guiana. The dark blotch in the middle of its pale tan flank resembles a keyhole and gives the fish its English name, and a black bar runs through the eye. FishBase records a maximum of 7.1cm SL, while Seriously Fish gives 11cm. Seriously Fish recommends a 90 x 30cm tank (about 81 litres) at 21-28C, pH 4.0-7.5 and 2-15 dGH. Outside of breeding it shows almost no aggression and will not predate on anything larger than a few millimetres, which makes it a good companion for small characins. It is naturally shy and settles best with cover and floating plants to soften the light. A monogamous biparental substrate spawner, it is easily bred, may deposit around 300 eggs, and parents sometimes tend their young for several months.
Source: Wikipedia (CC BY-SA 4.0)
The Keyhole Cichlid lives 5-8 years.
The Keyhole Cichlid grows to 7-11cm.
The ideal temperature for the Keyhole Cichlid is 21〜28℃.
Origin
South America: Trinidad, the Orinoco delta, and rivers from the Barima in Guyana to the Ouanary in French Guiana
Lifespan
5-8 years
Sources: Seriously Fish / FishBase
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Accepted name: Cleithracara maronii Steindachner, 1881
Authority databases: FishBase
Nomenclature follows global taxonomic authority databases.
Sources: CITES Appendices (species not listed) / FishBase (IUCN assessment: LC)
Regulations may change. Always verify the latest information with the relevant authorities.
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Size
7-11cm
Temperature
21〜28℃
Prepared foods, frozen bloodworm, Artemia, Daphnia
90 x 30cm (about 81 litres) or larger. Provide cover with wood and plants, and soften the light with floating plants.
21-28C, pH 4.0-7.5, 2-15 dGH. Colours show best in soft, slightly acidic water.
Not aggressive except when breeding. It settles better alongside small shoaling fish such as characins.
It accepts most prepared foods. Supplement with frozen bloodworm, Artemia and Daphnia.
A monogamous biparental substrate spawner and easily bred. Up to around 300 eggs may be laid, and parents guard the young for a long period.
Shy, and it bolts for cover when startled. In an unsettled tank it may refuse food.
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
The ideal temperature for Keyhole Cichlid is 21〜28℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Keyhole Cichlid is 5-8 years. With proper care and nutrition, they can live a long and healthy life.
Keyhole Cichlid typically reaches 7-11cm as an adult. Size may vary depending on care conditions and individual genetics.
Keyhole Cichlid feeds on: Prepared foods, frozen bloodworm, Artemia, Daphnia. Aim for a balanced diet with appropriate feeding frequency.
The price of Keyhole Cichlid varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 17, 2026