A striking, highly aggressive predatory cichlid native to the rivers and lakes of Cuba. They are known for their spectacular black and white 'mosaic' or 'tiger' patterning, which becomes incredibly vivid during breeding. Best kept by experienced aquarists due to their extreme territoriality, potential size, and need for hard, alkaline water. They are also known to be naturally euryhaline, tolerating brackish conditions.
Cuban Cichlid At a Glance
Cuban Cichlid Tank Requirements
Will Cuban Cichlid fit in your tank?
Care guides tell you what Cuban Cichlid needs, the next question is whether your tank can safely provide it. Test Cuban Cichlid against your tank size, maintenance needs, and the fish you already keep before you buy.
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Cuban Cichlid Water Parameters
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Cuban Cichlid Temperament & Compatibility
Cuban Cichlid Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Male
Adult males are larger, more robust, and may develop a nuchal hump on their forehead as they mature. They are violently intolerant of other males and highly aggressive toward most tank mates.
Differs in 3 traits from base species
Also known as: Male Cuban, Bull
Female
Noticeably smaller than males but equally beautiful. Females often display a more intense, high-contrast dark pattern when brooding or preparing to spawn.
Differs in 2 traits from base species
Also known as: Female Cuban, Breeding Female
Juvenile (Grow-out)
Juvenile size commonly sold in the hobby. While they can be kept in smaller tanks or in groups initially, they grow fast and will soon begin eliminating weaker tank mates as they establish territories. A 75-gallon (280L) upgrade is mandatory as they mature.
Differs in 6 traits from base species
Also known as: Baby Cuban, Cuban Fry
Cuban Cichlid Care Guide Summary
The Cuban Cichlid, scientifically known as Nandopsis tetracanthus, belongs to the Cichlids - Central American family group. Adults reach a maximum size of approximately 25 cm and have a compressed body shape with a moderate growth rate. Classified as aggressive, this species primarily occupies the mid-level and bottom zones of the aquarium and produces a extreme level of biological waste.
To thrive, the Cuban Cichlid requires a brackish tolerant aquarium with a minimum volume of 280 litres and a tank length of at least 120 cm. Water temperature should be maintained between 24°C and 30°C, with a pH range of 7–8.5 and a general hardness of 10–25 dGH. A moderate water flow is preferred.
Due to its specialist needs, the Cuban Cichlid is best suited for fishkeepers who can provide a carefully planned setup. This species is available in 3 varieties: Male, 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.
Cuban Cichlid Habitat Setup
When setting up an aquarium for the Cuban 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, smooth gravel or rounded substrate to protect their sensitive barbels, and driftwood, which can serve as both a hiding place and a dietary supplement. Keepers should note that expect substrate disturbance, so lightweight décor should be secured and live planted layouts may be difficult to maintain, as this species tends to uproot or consume vegetation.
Cuban Cichlid Compatibility Notes
Classified as aggressive, the Cuban Cichlid 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, 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.
Cuban Cichlid Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Cuban Cichlid.
75 Gallon Standard
90 Gallon Standard
125 Gallon Standard
150 Gallon High
180 Gallon Standard
350 Liter (120cm Deep)
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Frequently Asked Questions About Cuban Cichlid
How big does Cuban Cichlid get?
Cuban Cichlid (Nandopsis tetracanthus) typically reaches a maximum adult size of approximately 25 cm. They have a compressed body shape and a moderate growth rate.
What tank size does Cuban Cichlid need?
A minimum aquarium volume of 280 litres and a tank length of at least 120 cm are recommended for Cuban Cichlid. This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Cuban Cichlid need?
Cuban Cichlid thrives in brackish tolerant conditions with a temperature range of 24–30°C, a pH between 7 and 8.5, and a general hardness of 10–25 dGH. A moderate water flow is preferred.
Is Cuban Cichlid peaceful or aggressive?
Cuban Cichlid is classified as aggressive with an aggression score of 8 out of 10. Careful tankmate selection is essential to avoid conflict.
Can Cuban Cichlid live alone?
Yes, Cuban Cichlid can be kept singly or in a group. They are flexible and adapt well to both setups.
Does Cuban Cichlid have any special tank requirements?
Yes. Cuban Cichlid benefits from sand (sifters), driftwood (digestion/hiding), and smooth gravel (sensitive barbels) in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.
Plants That Suit Cuban Cichlid
These plants pair well with Cuban Cichlid 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
Congo Anubias
Anubias heterophylla
Dwarf Buce
Bucephalandra pygmaea
Fish Similar to Cuban Cichlid
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Ctenochromis horei
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Buffalo Head Cichlid
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Black Diamond Cichlid
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Texas Cichlid
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African Jewel Cichlid
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A strikingly beautiful but notoriously aggressive West African riverine cichlid. Unlike the alkaline-loving Rift Lake cichlids (e.g., Mbuna), Jewel Cichlids prefer neutral, softer water parameters. They are renowned for their brilliant red breeding dress and iridescent blue spots, but also for their extreme territoriality, especially when forming pairs and spawning. They are avid diggers and will uproot most plants.
Trout Cichlid (Champsochromis)
Champsochromis caeruleus
A massive, fast-swimming predatory cichlid from Lake Malawi, often called the 'Malawi Trout' due to its streamlined, torpedo-like body. They are pursuit predators that require enormous tanks with a massive footprint for open swimming. Not highly aggressive for a Malawi cichlid, but their sheer size and piscivorous nature mean they will instantly consume any fish that fits in their large mouths.