A massive, highly active Haplochromine cichlid from Lake Malawi, famous for its unique defense mechanism: diving headfirst and burying itself completely in the sand when startled. Due to its large adult size and open-water swimming behavior, it requires a huge aquarium with fine sand substrate.
Fosso Cichlid (Fossorochromis rostratus) At a Glance
Fosso Cichlid (Fossorochromis rostratus) Tank Requirements
Will Fosso Cichlid (Fossorochromis rostratus) fit in your tank?
Care guides tell you what Fosso Cichlid (Fossorochromis rostratus) needs, the next question is whether your tank can safely provide it. Test Fosso Cichlid (Fossorochromis rostratus) against your tank size, maintenance needs, and the fish you already keep before you buy.
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Fosso Cichlid (Fossorochromis rostratus) Water Parameters
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Fosso Cichlid (Fossorochromis rostratus) Temperament & Compatibility
Fosso Cichlid (Fossorochromis rostratus) Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Male (Adult)
Adult males develop stunning metallic blue, green, and bronze coloration. They become territorial during breeding and require enormous open swimming spaces to thrive.
Differs in 1 trait from base species
Also known as: Show Male, Standard
Female
Females retain the juvenile silvery base color with distinct rows of dark spots. They are generally more peaceful than males and will aggressively dive into the sand if threatened. Best kept in a harem (multiple females to one male).
Differs in 2 traits from base species
Also known as: Spotted Cichlid, Female Rostratus
Juvenile (Grow-out)
Juveniles are silver with dark spots and grow extremely fast. While they can be housed in smaller grow-out tanks initially, their rapid growth rate means they will require a 6-foot+ aquarium within their first year.
Differs in 5 traits from base species
Also known as: Baby Fosso, Juvenile Rostratus
Fosso Cichlid (Fossorochromis rostratus) Care Guide Summary
The Fosso Cichlid (Fossorochromis rostratus), scientifically known as Fossorochromis rostratus, belongs to the Cichlids - African family group. Adults reach a maximum size of approximately 30 cm and have a fusiform body shape with a fast growth rate. Classified as semi-aggressive, this species primarily occupies the bottom and mid-level zones of the aquarium and produces a high level of biological waste.
To thrive, the Fosso Cichlid (Fossorochromis rostratus) requires a freshwater only aquarium with a minimum volume of 680 litres and a tank length of at least 180 cm. Water temperature should be maintained between 24°C and 28°C, with a pH range of 7.8–8.6 and a general hardness of 10–25 dGH. A moderate water flow is preferred.
The Fosso Cichlid (Fossorochromis rostratus) is a rewarding species to keep, provided its core environmental needs are met. This species is available in 3 varieties: Male (Adult), Female, and Juvenile (Grow-out). 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.
Fosso Cichlid (Fossorochromis rostratus) Habitat Setup
When setting up an aquarium for the Fosso Cichlid (Fossorochromis rostratus), a moderate water flow best suits their natural preferences. Because this species occupies the bottom and mid-level 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. Keepers should note that expect substrate disturbance, so lightweight décor should be secured.
Fosso Cichlid (Fossorochromis rostratus) Compatibility Notes
Classified as semi-aggressive, the Fosso Cichlid (Fossorochromis rostratus) is adaptable and can be kept singly or in a small group, offering flexibility when planning a community tank. When choosing tankmates, any fish small enough to fit in its mouth will likely be eaten, territorial behaviour may cause issues if hiding spots or floor space are limited, and their energetic swimming style may stress more sedentary or timid species. Selecting tankmates that favour different water layers from the bottom and mid-level zones can help reduce competition and territorial overlap.
Fosso Cichlid (Fossorochromis rostratus) Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Fosso Cichlid (Fossorochromis rostratus).
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Frequently Asked Questions About Fosso Cichlid (Fossorochromis rostratus)
How big does Fosso Cichlid (Fossorochromis rostratus) get?
Fosso Cichlid (Fossorochromis rostratus) (Fossorochromis rostratus) typically reaches a maximum adult size of approximately 30 cm. They have a fusiform body shape and a fast growth rate.
What tank size does Fosso Cichlid (Fossorochromis rostratus) need?
A minimum aquarium volume of 680 litres and a tank length of at least 180 cm are recommended for Fosso Cichlid (Fossorochromis rostratus). This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Fosso Cichlid (Fossorochromis rostratus) need?
Fosso Cichlid (Fossorochromis rostratus) thrives in freshwater only conditions with a temperature range of 24–28°C, a pH between 7.8 and 8.6, and a general hardness of 10–25 dGH. A moderate water flow is preferred.
Is Fosso Cichlid (Fossorochromis rostratus) peaceful or aggressive?
Fosso Cichlid (Fossorochromis rostratus) 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 Fosso Cichlid (Fossorochromis rostratus) live alone?
Yes, Fosso Cichlid (Fossorochromis rostratus) can be kept singly or in a group. They are flexible and adapt well to both setups.
Does Fosso Cichlid (Fossorochromis rostratus) have any special tank requirements?
Yes. Fosso Cichlid (Fossorochromis rostratus) benefits from sand (sifters) in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.
Plants That Suit Fosso Cichlid (Fossorochromis rostratus)
These plants pair well with Fosso Cichlid (Fossorochromis rostratus) based on shared water preferences, layout fit, and how likely they are to hold up in the same aquarium.
Afzel's Anubias
Anubias afzelii
Anubias Barteri
Anubias barteri
Congo Anubias
Anubias heterophylla
Gillet's Anubias
Anubias gilletii
Java Fern
Leptochilus pteropus
Java Moss
Taxiphyllum barbieri
Fish Similar to Fosso Cichlid (Fossorochromis rostratus)
Livingston's Cichlid
Nimbochromis livingstonii
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Three-Spot Torpedo Hap
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Buccochromis rhoadesii
Buccochromis rhoadesii
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Horei Cichlid
Ctenochromis horei
A robust and highly aggressive haplochromine cichlid native to Lake Tanganyika. Known for its striking coloration and dynamic, albeit violent, territorial behavior. Adults are opportunistic predators and piscivores. They are maternal mouthbrooders, and males are fiercely intolerant of other males. They require hard, alkaline water.
Venustus Cichlid (Giraffe Hap)
Nimbochromis venustus
A large, striking Haplochromine cichlid from Lake Malawi. Named for its elegant 'giraffe-like' blotched pattern. In the wild, they are specialized ambush predators that lie motionless in the sand to attract and consume smaller fish. They require large aquariums, hard alkaline water, and cannot be kept with fish small enough to fit in their mouths.