
Pseudotropheus polit
24–28°C · pH 7.5–8.5 · 200L

The Blue Gold Mbuna Cichlid (Pseudotropheus kingsizei) is a striking blue-and-gold Lake Malawi cichlid for a 200L+ rockwork tank. A moderate-care, territorial African cichlid with bold colour and personality. Buy online for UK delivery.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.
Pseudotropheus kingsizei blue gold
Blue Gold Mbuna Cichlid bond and breed in male/female pairs — buying a pair gives them the social structure they need.
The Blue Gold Mbuna Cichlid (Pseudotropheus kingsizei) is a striking blue-and-gold Lake Malawi cichlid for a 200L+ rockwork tank. A moderate-care, territorial African cichlid with bold colour and personality. Buy online for UK delivery.
Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Photos are AI-enhanced, so the animal may show subtle colour or marking differences.

Cichlids are one of the most diverse fish families in the hobby. From tiny apistogrammas to massive oscars, this guide covers the basics of keeping them well.
Maintain these water conditions for optimal health and vibrant colors
If you are searching for tropical fish for sale UK and want a Lake Malawi species with striking colour, bold personality, and fascinating behaviour, Pseudotropheus sp. 'Kingsizei' deserves a close look. Commonly known as the Blue Gold Mbuna Cichlid, this rock-dwelling African cichlid combines electric blue body tones with warm golden highlights that stand out beautifully against pale sand and dark stone. It grows to around 12 cm, can live up to 8 years, and is best suited to aquarists with some experience in tropical fish tank care. This is a territorial Mbuna rather than a fish for a small tetra display: it thrives in a properly planned blue gold mbuna cichlid Malawi tank setup with hard, alkaline water, strong filtration, and plenty of rocky cover. For a broader overview of keeping rift-lake cichlids, see our cichlid care guide.
If you are wondering what size tank a fish like this needs, the answer is roomy, stable, and structured. The blue gold mbuna cichlid minimum tank size is 200 litres, with larger tanks making aggression easier to manage. Whether you want to buy live fish online uk, compare lake malawi cichlids for sale uk, or find a species that offers more activity than many community tropical fish uk options, this Lake Malawi cichlid UK favourite rewards good husbandry with constant movement, social displays, and vivid colour.
The Blue Gold Mbuna belongs to the diverse cichlid family of East Africa. In the aquarium hobby, Mbuna are known for their rock-dwelling lifestyle, territorial behaviour, maternal mouthbrooding, and bright colour patterns. Pseudotropheus species remain especially popular among keepers of African cichlid UK aquariums because they are active, hardy in the right water chemistry, and endlessly interesting to watch.
The Blue Gold Mbuna comes from Lake Malawi in East Africa, one of the world's great rift lakes and a source of many sought-after lake malawi cichlids for sale uk. In the wild, these fish inhabit rocky shorelines where cracks, caves, and boulder piles create territories and feeding zones. This natural setting explains almost everything about their aquarium needs: they want hard alkaline water, lots of stonework, and line-of-sight breaks to reduce conflict.
Lake Malawi is a huge, mineral-rich freshwater lake with stable chemistry. The water stays warm and consistent year-round, which is why the blue gold mbuna cichlid ideal temperature in captivity sits at 24-28°C. A Malawi setup runs warmer and much harder than the soft-water conditions favoured by many community tetras, so “tropical” is not one fixed number.
In nature, these fish graze on algae films and the tiny organisms living within them, so the correct blue gold mbuna cichlid diet is mainly vegetable-based rather than rich meaty foods. Their environment also functions as a balanced ecosystem in miniature: rocks host biofilm, fish establish territories, and water movement keeps oxygen levels high. No fish replaces regular maintenance, but disciplined feeding and grazing help keep rock surfaces in check.
Mbuna are indoor aquarium fish that need heated, stable water all year round; they are not suited to ponds or outdoor setups. They also are not a good fit for heavily planted displays or random mixed tanks. Think of this fish as a specialist choice for a dedicated rock-based cichlid aquarium rather than a general community option.
Mimicking the natural habitat with stacked rock piles, open swimming lanes, and alkaline water brings out stronger colour, more confident behaviour, and more natural grazing. Fish kept in sparse tanks often become either overly aggressive or unusually shy.
A successful blue gold mbuna cichlid care guide starts with space, structure, and stable water chemistry. This species is active, territorial, and produces a fair amount of waste, so the right tropical fish tank complete setup matters from day one.
The blue gold mbuna cichlid tank size should be at least 200 litres, though a larger tank is better for long-term success. A 100 cm tank is a practical starting point because it gives enough floor area for rock territories and swimming space, while a 50-60 cm tank is too small for adult groups. When stocking Mbuna, prioritise a wide footprint over height.
The correct blue gold mbuna cichlid temperature range is 24-28°C, with 25-26°C a sensible everyday target. This is the ideal tropical fish tank water temperature for the species; consistency matters far more than chasing the warmest setting, so the best temperature is one that stays steady rather than swinging through the day.
A reliable tropical fish tank heater is essential. Position it where water flow is strong so heat distributes evenly, and set it to hold a stable mid-range figure without hot spots. If a tank runs too hot, oxygen drops and aggression can worsen; for UK keepers, 25-26°C is a dependable midpoint in Celsius.
This species benefits from strong filtration, with turnover of roughly 6-10 times tank volume per hour. A robust canister or high-capacity internal filter works well. To keep the water clear in a Mbuna tank, rely on heavy biological filtration, regular water changes, and controlled feeding. Choose a filter and heater for reliability rather than price, because these fish dislike unstable conditions.
Use fine sand or smooth gravel and build secure rock formations directly on the tank base before adding substrate. This prevents collapses when fish dig. The ideal blue gold mbuna cichlid hard water care layout includes multiple caves, arches, and visual barriers. These fish live in the middle and lower zones but constantly move around rocky structures.
If you want greenery, choose tough species such as Anubias or Java fern attached to rock. Keep expectations realistic: this is not the best blue gold mbuna cichlid for planted aquarium choice because grazing and digging are common. In a Malawi setup, hardy attached plants work better than delicate stems, and heavy plant fertiliser is best avoided if algae is already an issue.
Before stocking, test the water and monitor ammonia, nitrite, nitrate, pH, and hardness. Mbuna are not the easiest beginner species, but they are very rewarding once their tropical fish tank requirements are met. For those building a dedicated African cichlid display, related Malawi species such as the Yellow Elongatus Cichlid - Chindongo Elongatus and Rubin Red Peacock Cichlid - Aulonocara are worth comparing when planning stock.
Always cycle the tank for 4-6 weeks before adding Mbuna. When setting up a Malawi aquarium, patience at the start prevents most early losses.
The blue gold mbuna cichlid diet should be mainly herbivorous. In the wild they graze algae and associated microorganisms from rock surfaces, so their digestive system is adapted to frequent, fibre-rich feeding. In captivity, the best blue gold mbuna cichlid feeding plan uses spirulina flakes, vegetable-based cichlid pellets, algae wafers, and blanched greens such as spinach, courgette, or peas.
Offer a quality spirulina flake or herbivore pellet as the daily staple. This supports digestion, colour, and steady growth without the risks linked to rich protein foods. Some algae growth is natural in Mbuna aquariums, and light grazing can be beneficial, but it should not replace a balanced prepared diet.
Good supplements include algae wafers and blanched vegetables. Avoid over-relying on bloodworm, tubifex, or fatty meaty foods, which are common causes of digestive trouble and can contribute to Malawi bloat. This species may peck at small snails but should not be bought as a snail-control solution.
Feed small amounts 2-3 times daily, only what the group can finish in about 30-60 seconds. This keeps water quality manageable and reduces waste. Heavy feeding contributes to brown algae, green algae, and cloudy water, especially in newly set up systems.
| Time | Food | Amount |
|---|---|---|
| Morning | Spirulina flakes or herbivore pellets | Small pinch, eaten within 30 seconds |
| Evening | Algae wafers or blanched vegetables | One small wafer or a small vegetable portion |
Rather than adding unsuitable “cleanup” fish to deal with leftovers, the better answer in a Malawi tank is disciplined feeding and strong filtration. If algae becomes excessive, review lighting, nutrient load, and maintenance before reaching for chemical treatments. Persistent black or hair algae usually points to an imbalance rather than a lack of algae eaters.
Overfeeding causes ammonia spikes, poor water quality, bloating, and aggressive competition. Herbivorous Mbuna should not be fed a rich carnivore diet long term.
The Blue Gold Mbuna Cichlid Fish has the compact, muscular build typical of rock-dwelling Mbuna. Adults reach around 12 cm and have a sturdy body, rounded forehead, and strong fins built for quick turns around stonework. The base colour is usually blue to bluish violet, overlaid with darker bars and warm gold or yellow accents that become more intense under good lighting and stable water conditions.
Males are usually more vivid and more territorial, especially when displaying to rivals or females. Females tend to be slightly plainer, though still attractive. In a settled group with the correct blue gold mbuna cichlid water parameters, dominant males often show their best contrast over pale substrate and dark rock backgrounds. Our detailed product photos let you judge body shape, finnage, and colour distribution before you buy.
People searching for a blue gold mbuna cichlid for large tank often choose this fish because its colour reads clearly even in bigger displays. It is less suitable as a blue gold mbuna cichlid for beginners than some hardier community fish, but visually it is one of the more rewarding Malawi species. Our photos show the clean finnage and strong body shape associated with well-kept stock, not washed-out fish kept in soft water or cramped quarters.
Compatibility is the biggest question most buyers have. The short answer is that blue gold mbuna cichlid compatible fish are usually other robust African cichlids with similar water needs and temperament. This is not a fish for a peaceful tetra setup, and it is not ideal for the average blue gold mbuna cichlid community tank in the everyday sense of the word. In Malawi terms, a community means carefully chosen species with similar behaviour and chemistry requirements.
The best tank mates for blue gold mbuna cichlid are other Mbuna of suitable size and temperament, plus certain hardy catfish such as Synodontis. Good examples to compare include the Yellow Elongatus Cichlid - Chindongo Elongatus, Aulonocara kandeense, Rubin Red Peacock Cichlid - Aulonocara, and Aulonocara Sp Neon Red Calico Peacock. Use caution with peacocks, though, because some are less aggressive than Mbuna and may be stressed in the wrong mix.
If you are building a species-rich cichlid display, the Orange I Blunthead Cichlid - Tropheus and Kiriza Yellow Cichlid - Tropheus Moorii are interesting fish to compare, but they are not direct Malawi community substitutes. The Thorichthys Maculipinnis - Elliot'S Cichlid - and Guianacara Dacrya - South American Cichlid come from different regions and water chemistry, so they are better viewed as alternatives rather than tank mates.
Avoid small fish, shrimp, delicate bottom dwellers, and peaceful haps. This species is not suitable with most invertebrates, and it can harass slower or softer-water fish. When following generic tropical fish tank mates advice or a broad compatibility chart, remember that Mbuna rules differ from standard community tropical fish uk stocking.
The recommended social structure is one male with three or more females, or a larger overstocked Mbuna group in a big tank to spread aggression. The ideal blue gold mbuna cichlid school size is not a true school but a managed social group, which is why the species is poor blue gold mbuna cichlid for community tank material in the conventional sense yet excellent in a specialist African cichlid setup.
| Species | Compatible? | Notes |
|---|---|---|
| Yellow Elongatus Cichlid - Chindongo Elongatus | ✅ Yes | Similar Malawi water needs and robust enough for Mbuna-style setups |
| Rubin Red Peacock Cichlid - Aulonocara | ⚠️ Caution | Can work in larger, carefully balanced tanks, but temperament mismatch is possible |
| Shrimp, tetras, small peaceful fish | ❌ Avoid | Wrong temperament, wrong water chemistry, and high predation or stress risk |
Maintenance also affects compatibility. Regular water changes and a clean tank reduce stress and territorial flare-ups. If you notice rising aggression, test the water and review stocking before blaming the species alone. Many compatibility problems start with poor layout, weak filtration, or neglected maintenance.
Always quarantine new arrivals for 2-4 weeks in a separate tropical fish quarantine tank. This protects established Mbuna from parasites and gives new fish time to recover strength before entering a territorial aquarium.
Blue gold mbuna cichlid breeding is considered relatively easy once the fish are mature, healthy, and kept in correct water conditions. Like many Mbuna, they are maternal mouthbrooders, meaning the female carries the eggs and developing fry in her mouth rather than laying exposed eggs on plants or decor.
A dedicated breeding group works better than trying to keep a single blue gold mbuna cichlid breeding pair. Use one male with several females in a spacious tank with flat stones and caves. Keep water at the upper-middle part of the normal range, around 26°C, and maintain excellent quality. For breeding, keep pH stable between 7.8 and 8.4 with hard water.
The male intensifies in colour and claims a display site. He shimmies, circles, and attempts to lead a female to spawn. After the eggs are laid and fertilised, the female gathers them into her mouth. New keepers sometimes worry when they cannot see eggs; with this species, visible eggs are often absent because the female is already holding them.
The female may hold for around 18-28 days depending on temperature and development, and she often eats little during this time. Once released, fry can be fed crushed spirulina flake, powdered herbivore foods, and finely crumbled algae-based diets. Specialist mbuna breeders uk sometimes strip females early, but for most hobbyists it is safer to let experienced mothers carry naturally.
To improve success, keep water parameters in check: zero ammonia, zero nitrite, and low nitrate. Stable chemistry matters more than chasing exact numbers. Breeding this species is a good example of what a cichlid tank really needs: space, hard water, clean filtration, and a calm social structure.
If a holding female is being bullied, move her gently to a separate rearing tank with identical water parameters rather than changing conditions. Sudden shifts in pH or hardness can cause her to spit the brood early.
Many buyers comparing tropical fish for sale online want to know whether this fish is the right fit or whether a different cichlid would be easier. The Blue Gold Mbuna is best for aquarists who want active rock-dwellers, stronger behaviour, and hard-water conditions. If you prefer a calmer display, another species may suit you better.
| Feature | Blue Gold Mbuna | Rubin Red Peacock (Aulonocara) |
|---|---|---|
| Temperament | Aggressive, territorial | Moderate |
| Water Type | Hard, alkaline | Hard, alkaline |
| Temperature | 24-28°C | 24-28°C |
| Decor | Rocks and caves | More open swimming space |
| Best For | Mbuna enthusiasts wanting structured aggression control | Colour-focused Aulonocara keepers in a mixed peacock display |
Choose the Blue Gold Mbuna if you want a classic rock-dwelling African cichlid UK species with strong personality and visible social behaviour. Choose a peacock cichlid if you prefer a less confrontational display. If you are building a Malawi collection, compare this fish with the Yellow Elongatus Cichlid - Chindongo Elongatus, Rubin Red Peacock Cichlid - Aulonocara, and Aulonocara Sp Neon Red Calico Peacock before deciding.
A healthy Blue Gold Mbuna Cichlid is alert, brightly coloured, quick to feed, and confident around rockwork. Fins should be open, breathing steady, and the belly neither pinched nor swollen. Most health problems in this species are linked to stress, poor water quality, or unsuitable diet.
The main risks include Malawi bloat, external parasites, bacterial infections after fighting, and stress-related colour loss. Poor maintenance can also lead to cloudy water and odour, usually caused by overfeeding, immature filtration, or trapped waste. Green water typically comes down to excess light and nutrients, so review lighting duration and feeding before adding more fish.
Good prevention starts with proper routine maintenance. Test the water weekly, carry out regular partial changes, and avoid rich foods. Keep additives simple: dechlorinator, appropriate mineral support if needed, and medicines only when clearly indicated. Random additives cause more problems than they solve.
Never medicate blindly. Digestive swelling in herbivorous Mbuna is often diet-related, and treating with the wrong product while continuing a high-protein diet can make the problem worse.
The real advantage of specialist online stock is consistent species-specific care information. That matters with Mbuna, because generic tropical fish advice often misses their need for hard water and herbivorous feeding.
Blue gold mbuna cichlid behaviour is active, territorial, and highly visual. These fish spend much of the day patrolling rockwork, grazing surfaces, chasing rivals, and displaying to females. They are not shy once settled, and their confidence is one reason they are so popular in Malawi tanks.
This species is not a true schooling fish, so the term blue gold mbuna cichlid school size is a little misleading. Instead, think in terms of social structure and territory. A dominant male will claim a cave or flat stone and defend it, while females and subordinate fish move through the surrounding areas. The right rock layout allows fish to break sight lines and reduces constant conflict.
To encourage natural behaviour, keep them in a properly stocked group, maintain steady blue gold mbuna cichlid water hardness, and avoid mixing them with timid fish. In a well-designed aquarium, you will see grazing, courtship circling, mouthbrooding, and rank displays that make Mbuna tanks so engaging.
When people search tropical fish for sale near me, tropical fish for sale UK, buy tropical fish UK, or best place to buy tropical fish online, they usually want three things: healthy stock, accurate care advice, and safe delivery. With Blue Gold Mbuna, that matters even more because this species needs correct handling from the start. Fish that have been poorly fed, kept too soft, or crowded without structure often arrive stressed and slow to settle.
Our Blue Gold Mbuna are selected for strong body shape, clear eyes, intact finnage, and active feeding response. Before dispatch, they are observed for behaviour, appetite, and overall condition, then packed in insulated boxes with professional fish bags, oxygen-rich packing space, and seasonal heat packs when weather requires it. This makes a real difference for customers looking to blue gold mbuna cichlid buy online UK with confidence.
If you are browsing for the best place to buy tropical fish uk or researching malawi fish suppliers, remember that Blue Gold Mbuna are heated freshwater cichlids, not coldwater fish, and they are clearly listed as a moderate-care Malawi herbivore with aggression-management needs rather than a generic peaceful community fish. Order your Blue Gold Mbuna today if you want a colourful, active, specialist African cichlid that rewards proper care with years of movement and character.
Building a Malawi display or comparing alternatives? The Yellow Elongatus Cichlid - Chindongo Elongatus is a strong companion species for a rock-based Mbuna aquarium. If you prefer peacock colour forms, look at Rubin Red Peacock Cichlid - Aulonocara or Aulonocara Sp Neon Red Calico Peacock. For a different Tanganyikan look, compare the Kiriza Yellow Cichlid - Tropheus Moorii. If you are still deciding between regional styles, the Guianacara Dacrya - South American Cichlid offers a softer-water alternative. These related fish help you shape the right cichlid collection rather than buying a random freshwater fish bundle.

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