A critically endangered African cichlid (extinct in Lake Victoria, now found primarily in Lake Kanyaboli) famous for the male's festive red, green, and blue colors. Like many Victorian haplochromines, they are active, aggressive, and best kept in rock-scaped tanks with hard, alkaline water. They are harem breeders and require a strict male-to-female ratio to manage aggression.
Christmas Fulu At a Glance
Christmas Fulu Tank Requirements
Will Christmas Fulu fit in your tank?
Care guides tell you what Christmas Fulu needs, the next question is whether your tank can safely provide it. Test Christmas Fulu against your tank size, maintenance needs, and the fish you already keep before you buy.
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Christmas Fulu Water Parameters
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Christmas Fulu Temperament & Compatibility
Christmas Fulu Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Male
Boasts spectacular red, green, and blue breeding colors (hence 'Christmas'). Highly aggressive towards other males. Best kept as a single male alongside a harem of females to disperse his breeding aggression, or as a single show fish in a mixed African cichlid tank.
Differs in 3 traits from base species
Also known as: Show Male, Dominant Male
Female
Drab gold or yellowish coloration with faint vertical bars. Smaller and less aggressive than the male. Must be kept in groups of 3 or more per male to prevent fatal harassment.
Differs in 3 traits from base species
Also known as: Female Fulu, Harem
Christmas Fulu Care Guide Summary
The Christmas Fulu, scientifically known as Xystichromis phytophagus, belongs to the Cichlids - African family group. Adults reach a maximum size of approximately 11 cm and have a fusiform 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 Christmas Fulu requires a freshwater only aquarium with a minimum volume of 150 litres and a tank length of at least 90 cm. Water temperature should be maintained between 24°C and 28°C, with a pH range of 7.5–8.6 and a general hardness of 10–20 dGH. A moderate water flow is preferred.
The Christmas Fulu is a rewarding species to keep, provided its core environmental needs are met. This species is available in 2 varieties: Male and Female. 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.
Christmas Fulu Habitat Setup
When setting up an aquarium for the Christmas Fulu, 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 an established tank with natural algae growth, as they depend on it as a primary food source. Keepers should note that expect substrate disturbance, so lightweight décor should be secured.
Christmas Fulu Compatibility Notes
Classified as semi-aggressive, the Christmas Fulu 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, 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 mid-level and bottom zones can help reduce competition and territorial overlap.
Christmas Fulu Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Christmas Fulu.
40 Gallon Breeder
55 Gallon Standard
60 Gallon Breeder
75 Gallon Standard
90 Gallon Standard
125 Gallon Standard
Show 9 more tank sizes
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Frequently Asked Questions About Christmas Fulu
How big does Christmas Fulu get?
Christmas Fulu (Xystichromis phytophagus) typically reaches a maximum adult size of approximately 11 cm. They have a fusiform body shape and a moderate growth rate.
What tank size does Christmas Fulu need?
A minimum aquarium volume of 150 litres and a tank length of at least 90 cm are recommended for Christmas Fulu. This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Christmas Fulu need?
Christmas Fulu thrives in freshwater only conditions with a temperature range of 24–28°C, a pH between 7.5 and 8.6, and a general hardness of 10–20 dGH. A moderate water flow is preferred.
Is Christmas Fulu peaceful or aggressive?
Christmas Fulu 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 Christmas Fulu live alone?
Yes, Christmas Fulu can be kept singly or in a group. They are flexible and adapt well to both setups.
Does Christmas Fulu have any special tank requirements?
Yes. Christmas Fulu benefits from sand (sifters) and established algae (otocinclus) in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.
Plants That Suit Christmas Fulu
These plants pair well with Christmas Fulu 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
Belinda's Buce
Bucephalandra belindae
Buce Motleyana
Bucephalandra motleyana
Christmas Moss
Vesicularia montagnei
Congo Anubias
Anubias heterophylla
Fish Similar to Christmas Fulu
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.
Red Zebra Cichlid (Cherry Red)
Metriaclima estherae
A highly popular and vibrant Mbuna cichlid from Lake Malawi. The 'Cherry Red' or Orange morph is a favorite for African Cichlid setups. They are rock-dwelling (Mbuna), highly territorial, and require a diet rich in vegetable matter (algae/spirulina) to avoid Malawi Bloat. Best kept in a harem ratio of 1 male to 3+ females.
Red Fin Borleyi
Copadichromis borleyi
A popular African Cichlid from Lake Malawi belonging to the open-water Utaka group. Known for extreme sexual dimorphism, mature males display brilliant orange-red bodies with metallic blue heads, while females remain silver. They require hard, alkaline water, sandy substrates, and plenty of open swimming space.
Electric Blue Johannii
Pseudotropheus johannii
An iconic Mbuna cichlid from Lake Malawi renowned for extreme sexual dimorphism. Males transform into a striking electric blue with dark navy horizontal stripes, while females and juveniles remain a vibrant yellow-orange. Like most Mbuna, they are highly aggressive, territorial, and require hard, alkaline water with extensive rockwork to form caves. They are avid diggers and will destroy most live plants.
Azureus Cichlid
Copadichromis azureus
A stunning open-water 'Utaka' cichlid from Lake Malawi. Males develop a spectacular metallic blue coloration, making them popular centerpieces in African Cichlid tanks. Compared to rock-dwelling Mbuna, they are relatively peaceful open-water swimmers but still require ample swimming space and hard, alkaline water.
Yellow Lab (Mbuna)
Labidochromis caeruleus
The Electric Yellow Lab is one of the most popular and widely kept African Cichlids from Lake Malawi. Classified as an Mbuna (rock-dwelling cichlid), they are famous for their vibrant yellow coloration and striking black dorsal stripes. While considered one of the most 'peaceful' Mbuna, they are still highly territorial cichlids that require hard, alkaline water, a sandy substrate for digging, and abundant rockwork to establish territories.