A popular Central American cichlid famous for the bright red coloration on its throat and belly, which it flares to intimidate rivals. They are earth-eaters, constantly sifting sand for food. While territorial, especially during breeding, they are relatively peaceful for a cichlid of their size compared to larger Central American counterparts.
At a Glance
Tank Requirements
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Water Parameters
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Temperament & Compatibility
Available Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Male
Adult males are larger, display the most intense red throat/belly coloration, and develop extended, pointed dorsal and anal fins. They are highly territorial, frequently flaring their gills to establish dominance.
Differs in 1 trait from base species
Also known as: Adult Male, Show Male
Female
Females are notably smaller and generally have less vibrant red coloration. Their fin edges are more rounded. They are less aggressive than males unless actively guarding eggs or fry.
Differs in 2 traits from base species
Also known as: Adult Female
Unsexed Juvenile
Young Firemouths are silvery with faint vertical bars and lack the signature red throat. Sexing is extremely difficult at this stage. They are often kept in groups to allow natural pairing as they mature.
Differs in 5 traits from base species
Also known as: Baby Firemouth, Juvenile
Firemouth Cichlid Care Guide Summary
The Firemouth Cichlid, scientifically known as Thorichthys meeki, belongs to the Cichlids - Central American family group. Adults reach a maximum size of approximately 15 cm and have a compressed body shape with a moderate growth rate. Classified as semi-aggressive, this species primarily occupies the mid-level and bottom zones of the aquarium and produces a high level of biological waste.
To thrive, the Firemouth Cichlid requires a freshwater only aquarium with a minimum volume of 110 litres and a tank length of at least 90 cm. Water temperature should be maintained between 23°C and 30°C, with a pH range of 6.5–8 and a general hardness of 8–15 dGH. A moderate water flow is preferred. An aquarium test kit can help you monitor these values.
The Firemouth Cichlid is a rewarding species to keep, provided its core environmental needs are met. This species is available in 3 varieties: Male, Female, and Unsexed Juvenile. Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.
Firemouth Cichlid Habitat Setup
When setting up an aquarium for the Firemouth Cichlid, a moderate water flow best suits their natural preferences. Because this species occupies the mid-level and bottom zones, the aquarium layout should prioritise open swimming space in the centre of the tank for free movement and sufficient floor space with hiding spots among rocks, wood, or dense planting. Useful additions include a sand substrate to accommodate their sifting behaviour and smooth gravel or rounded substrate to protect their sensitive barbels. Keepers should note that expect substrate disturbance, so lightweight décor should be secured. Browse aquarium sand substrate options to find the best fit.
Firemouth Cichlid Compatibility Notes
Classified as semi-aggressive, the Firemouth Cichlid is adaptable and can be kept singly or in a small group, offering flexibility when planning a community tank. When choosing tankmates, conspecific aggression can be intense, especially in smaller tanks and territorial behaviour may cause issues if hiding spots or floor space are limited. Selecting tankmates that favour different water layers from the mid-level and bottom zones can help reduce competition and territorial overlap.
Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Firemouth Cichlid.
30 Gallon Breeder
40 Gallon Breeder
55 Gallon Standard
60 Gallon Breeder
75 Gallon Standard
90 Gallon Standard
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Frequently Asked Questions About Firemouth Cichlid
How big does Firemouth Cichlid get?
Firemouth Cichlid (Thorichthys meeki) typically reaches a maximum adult size of approximately 15 cm. They have a compressed body shape and a moderate growth rate.
What tank size does Firemouth Cichlid need?
A minimum aquarium volume of 110 litres and a tank length of at least 90 cm are recommended for Firemouth Cichlid. This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Firemouth Cichlid need?
Firemouth Cichlid thrives in freshwater only conditions with a temperature range of 23–30°C, a pH between 6.5 and 8, and a general hardness of 8–15 dGH. A moderate water flow is preferred.
Is Firemouth Cichlid peaceful or aggressive?
Firemouth Cichlid is classified as semi-aggressive with an aggression score of 6 out of 10. They can work in community setups but may clash with certain tankmates.
Can Firemouth Cichlid live alone?
Yes, Firemouth Cichlid can be kept singly or in a group. They are flexible and adapt well to both setups.
Does Firemouth Cichlid have any special tank requirements?
Yes. Firemouth Cichlid benefits from sand (sifters) and smooth gravel (sensitive barbels) in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.
Similar Species
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Frontosa
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Jack Dempsey
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