What Makes Peacock Cichlids Special?
Peacock cichlids belong to the genus Aulonocara, a group of medium-sized cichlids endemic to Lake Malawi in East Africa. Unlike many cichlids known for aggression and destruction, peacocks sit at the gentler end of the African cichlid spectrum — they are active, personable, and breathtakingly colored without being unmanageable in a well-planned aquarium. Males in full color display are a genuine spectacle that draw admiring looks from every visitor who sees the tank.
The genus contains over 20 recognized species, but the hobby has also produced numerous hybrid varieties bred specifically for intensified color. In Phnom Penh fish shops you will most commonly encounter the OB peacock (orange-blotch hybrid), the blue peacock (Aulonocara nyassae complex), the strawberry peacock (a popular hybrid), and the sunshine peacock (Aulonocara stuartgranti from Nkhata Bay). Each variety has slightly different behavior, maximum size, and ideal water parameters, though all share the core requirements of hard, alkaline water and a sandy substrate.
What separates peacock cichlids from other beginner-friendly fish is the combination of visibility and character. These fish are not shy — males actively patrol their territory, display to females and rival males, and interact visibly with their keeper. In a species-appropriate setup they are active throughout the day rather than hiding, and the constant movement and color display make the tank perpetually interesting to watch.
For Cambodian aquarists, peacock cichlids represent a manageable entry point into African cichlid keeping. Cambodia's typically harder tap water in urban areas often suits Malawi species better than South American soft-water fish, reducing the need for heavy buffering. That said, understanding and replicating Lake Malawi chemistry — high pH, high carbonate hardness, and moderate general hardness — is the single most critical factor in long-term success with this species.
- ✦Research the specific variety before purchasing — OB hybrids are hardier, while pure-species Aulonocara are more demanding but more rewarding for serious hobbyists.
- ✦Visit multiple Phnom Penh shops before buying — quality and health vary enormously between sources.
- ✦Never mix peacocks with highly aggressive mbuna cichlids; the aggression mismatch leads to chronic stress and disease.
Water Chemistry: Replicating Lake Malawi in Phnom Penh
Lake Malawi is one of the world's great rift lakes — ancient, deep, and chemically stable in ways that most aquarium fish never experience in captivity. The water is alkaline (pH 7.8 to 8.6), hard (carbonate hardness 6 to 12 dKH, general hardness 10 to 18 dGH), warm (25 to 28°C), and exceptionally clear with high oxygen levels. Replicating these conditions is not optional — it is the foundation of peacock cichlid health.
Phnom Penh tap water varies by district but is generally moderately hard with a neutral to slightly alkaline pH. For peacock cichlids, you will typically need to raise both pH and hardness. The standard approach is to use crushed coral or aragonite as substrate or substrate additive, which slowly dissolves and buffers the water chemistry. Rift Lake salt mixes (available at specialty aquarium shops) provide the correct mineral profile and can be dosed according to manufacturer instructions to hit target parameters.
Temperature management in Cambodia's climate is unusual compared to temperate countries. While most aquarium guides recommend heaters, Cambodian aquarists in Phnom Penh often face the opposite problem: ambient temperatures frequently push tank temperatures above 30°C during hot season (March to May). Peacock cichlids tolerate temperatures up to 30°C but show increased stress, aggression, and disease susceptibility above that threshold. A small aquarium fan mounted over the water surface, combined with evaporative cooling, can reduce tank temperature by 2 to 3°C and is an essential tool during hot season.
Water changes are non-negotiable for Lake Malawi species. Despite their reputation as hardy cichlids, peacocks are sensitive to nitrate accumulation. Target water changes of 25 to 30 percent every week, using conditioned, pre-buffered water matched to tank temperature. Sudden drops in pH from a large water change with soft tap water are a common and easily preventable cause of cichlid death — always check the replacement water chemistry before adding it to the tank.
- ✦Test your Phnom Penh tap water monthly — chemistry can shift with seasons and treatment changes.
- ✦Crushed coral in a media bag inside the filter is a low-maintenance way to maintain stable alkalinity.
- ✦Keep a small bucket of pre-mixed Malawi salt solution ready for water changes — this eliminates the risk of pH crashes.
- ✦Avoid distilled or RO water for peacocks unless you remineralize it fully — they cannot survive in soft water.
Tank Setup: Size, Substrate, and Rockwork
Peacock cichlids are active fish that need space to establish territories and engage in natural behavior. The minimum recommended tank for a small group of peacocks is 200 liters (approximately 120 cm long), and 300 liters is strongly preferred for a mixed-species display tank. Smaller tanks lead to territory compression, chronic aggression, and the physical damage that results from fish that cannot escape each other. In a Phnom Penh apartment setting, a 200 to 300 liter tank is practical for most families and produces an impressive display without being prohibitively expensive.
The substrate for a Lake Malawi tank should be fine sand — ideally white or light-colored coral sand or fine silica sand at a depth of 5 to 8 centimeters. Peacocks are facultative sand sifters; they pick up mouthfuls of sand when foraging and expel it through their gills. This is completely natural behavior and not a sign of illness. Dark substrates suppress the brilliance of male coloration and should be avoided — the contrast between white sand and iridescent male peacocks is part of what makes these tanks so striking.
Rockwork is essential for providing territory boundaries and visual breaks. Stack smooth rocks (not sharp granite or limestone) into structures that create caves and overhangs without sharp protrusions that could injure fish. Open swimming space in the center and front of the tank is important — peacocks display in open water, not hiding in caves. A good layout has rock structures along the back and sides with a clear sandy swimming zone in the center. Avoid live plants; Lake Malawi has limited aquatic vegetation and peacocks will uproot most planted species.
Filtration must be oversized for cichlid tanks. A canister filter rated for double the tank volume is the practical minimum — peacocks produce more waste than small community fish, and the high pH of Malawi water means ammonia is more toxic than in acidic tanks. Supplementing with a sponge filter or powerhead for additional flow is common practice. Weekly filter maintenance (cleaning one media basket per rotation rather than all at once) prevents sudden nitrogen spikes from disturbing the bacterial colony.
- ✦Use rounded river rocks or smooth limestone — avoid sharp decorations that shred fins during territorial disputes.
- ✦Leave significant open water in the front and middle of the tank; peacocks display in open space, not just near rocks.
- ✦Light-colored fine sand dramatically enhances male coloration — it is one of the cheapest and most effective upgrades for a Malawi tank.
Feeding Peacock Cichlids in Cambodia
Peacock cichlids are micropredators in Lake Malawi, hunting small invertebrates, insect larvae, and crustaceans from the sandy sediment. In captivity, a high-quality cichlid pellet forms the nutritional backbone of the diet — look for pellets with a protein content of 40 to 45 percent and minimal plant-based filler. Brands widely available in Phnom Penh including Hikari Cichlid Gold and Sera Cichlid Sticks provide balanced nutrition and are sized appropriately for the 10 to 15 centimeter adult peacock.
Supplement the base pellet diet with high-protein live or frozen foods to trigger full coloration in males and support breeding condition in females. Frozen bloodworms, brine shrimp, daphnia, and Mysis shrimp are all excellent supplements. In Cambodia, live tubifex worms and live bloodworms are commonly available in Phnom Penh markets — these are eagerly accepted and stimulate natural hunting behavior, but should be used as supplements rather than staples due to disease risk from wild-caught live foods.
One critical dietary restriction for Malawi cichlids: avoid high-fat foods, beef heart, and excessive bloodworm feeding. Malawi bloat — a serious and often fatal digestive condition caused by inappropriate diet and bacterial overgrowth — is the single most common cause of death in African cichlids in captivity. The condition causes dramatic abdominal swelling, lethargy, and rapid deterioration. Prevention through appropriate diet and clean water is far more effective than treatment, which has a poor success rate once symptoms appear.
Feed peacocks twice daily in amounts they can consume within two to three minutes. Remove uneaten food promptly — cichlid waste and decaying food contribute to nitrate accumulation quickly in a heavily stocked Malawi tank. In Cambodia's heat, water quality degrades faster than in cooler climates, making overfeeding a more serious risk than in temperate aquariums. A slightly underfed cichlid is significantly healthier than an overfed one in Phnom Penh conditions.
- ✦Rotate between two to three quality pellet brands to prevent nutritional gaps and maintain feeding interest.
- ✦Add vitamin supplements like Seachem Vitality to food once per week — Cambodian market fish often arrive with depleted reserves.
- ✦Fast your cichlids one day per week — this reduces waste load and may reduce Malawi bloat risk.
Tank Mates: Who Lives Peacefully with Peacocks?
Choosing tank mates for peacock cichlids requires understanding the spectrum of African cichlid aggression. The golden rule is to avoid mbuna (rock-dwelling cichlids like Pseudotropheus and Melanochromis) in the same tank — these fish are significantly more aggressive and territorial than peacocks, and the combination leads to chronic harassment, fin damage, and stress-related disease. Mbuna also have a very different dietary requirement (more vegetable matter) and keeping them with peacocks creates feeding conflicts.
The best tank mates for peacocks are other Aulonocara species and the gentle Haplochromis group (haps) — particularly species like Sciaenochromis fryeri (electric blue hap), Copadichromis borleyi (red fin hap), and Placidochromis milomo. These fish occupy similar ecological niches, tolerate similar water chemistry, and show compatible levels of aggression. A species display with three to five Aulonocara varieties plus two to three compatible hap species creates an extraordinary color display in a 300-liter tank.
Tank mate ratios are critically important. Male peacocks are territorial with each other, and dominant males will harass subordinate males relentlessly in small tanks. The standard recommended ratio is one male to three to five females per species. In a mixed display tank, keeping only one male of each species reduces inter-male aggression significantly. Multiple males of the same or similar species intensify competition and should only be attempted in large tanks with dense rockwork providing visual breaks.
Some aquarists keep peacocks with large, robust catfish species as bottom dwellers. In Cambodia, the common Synodontis multipunctatus (cuckoo catfish from Lake Tanganyika) is a popular pairing — it is large enough to avoid being harassed, occupies different water layers than the cichlids, and adds visual interest to the lower zone of the tank. Avoid common plecos and small corydoras, which are inappropriate for hard, alkaline Malawi conditions.
- ✦Introduce all fish simultaneously when possible — this prevents any individual from establishing full territorial dominance before others arrive.
- ✦Keep a spare tank ready for injured or overly dominant fish — some males need temporary isolation.
- ✦Never add mbuna to a peacock tank "just to try" — the aggression is predictable and the damage can be severe.
Breeding Peacock Cichlids: Mouthbrooding in Your Aquarium
Peacock cichlids are maternal mouthbrooders — after spawning, the female carries the fertilized eggs and subsequently the fry in her mouth for 21 to 28 days, refusing food throughout the brooding period. This reproductive strategy is fascinating to observe and relatively easy to trigger in a well-conditioned pair. In Cambodia's warm water temperatures, the brooding period is often at the shorter end of the range (18 to 22 days) compared to cooler-water setups.
Conditioning for breeding involves maintaining excellent water quality (nitrates below 20 ppm), feeding high-quality protein foods regularly, and ensuring the tank has appropriate flat rocks or sandy areas for spawning. Males in breeding condition display their most intense coloration and actively court females with fin displays and lateral body shaking. Spawning typically occurs on a flat rock or in the open sand where the male has excavated a shallow pit.
After the female picks up the eggs, she should ideally be moved to a quiet, well-filtered breeding tank to complete the brooding period without harassment from tank mates. In a community tank, brooding females are often harassed by other fish and may spit their fry prematurely. A simple 60 to 80 liter bare-bottom tank with a sponge filter and appropriate water chemistry is sufficient for the brooding female — minimal decor reduces hiding spots for fry to get lost in when they are eventually released.
Fry released at the end of the brooding period are relatively large by cichlid standards and can immediately accept baby brine shrimp, micro-pellets, and finely crushed flake food. Growth is rapid in warm Cambodian water temperatures, and juveniles can reach 3 to 4 centimeters within the first two months. Peacock fry begin developing color at 4 to 6 months of age, with males showing their first iridescence by 6 to 8 months and reaching full adult coloration by 12 to 18 months.
- ✦A brooding female will typically have a visibly full, rounded lower jaw — do not mistake this for disease.
- ✦Allow the female to hold for the full natural period rather than stripping fry early — naturally released fry are more robust.
- ✦Separate growing juveniles from adults before males develop full color to prevent early territorial aggression.
Sourcing Quality Peacock Cichlids in Phnom Penh
The peacock cichlid market in Phnom Penh has grown substantially in recent years as Cambodian aquarists have developed a taste for African cichlids alongside the traditionally dominant Southeast Asian and South American fish. Specialty shops near the Russian Market area (Toul Tom Poung) and along Street 217 in BKK district carry African cichlid stock with reasonable regularity, though availability of specific Aulonocara species and varieties is inconsistent and depends heavily on the current import cycle.
Price ranges for peacock cichlids in Cambodia vary considerably by size, variety, and source. Common hybrid varieties such as OB peacocks and strawberry peacocks typically retail for 10,000 to 25,000 KHR (approximately $2.50 to $6 USD) for juveniles at 4 to 6 centimeters. Premium pure-species Aulonocara and larger, fully colored adult males command prices from 50,000 to 150,000 KHR ($12 to $37 USD). Import fish from Thailand and Vietnam are generally higher quality than locally bred stock but are priced accordingly.
When selecting peacock cichlids in Phnom Penh, look for juveniles at 4 to 7 centimeters showing active swimming behavior, no fin damage, erect fins, and clear eyes. In males large enough to show developing color, look for clean, even color development without pale patches. Avoid any fish showing white stringy feces (possible internal parasites), swollen abdomen, or clamped fins — these are common issues in imported fish that have been through stressful transport. Ask how long the fish have been in the shop and whether they have been eating — newly arrived fish need at least a week of acclimatization before they represent a healthy purchase.
At 4848 One Shop, we source our African cichlids directly from trusted importers who specialize in Lake Malawi species, with a holding period of at least one week and parasite treatment before any fish goes on sale. We carry rotating stock of popular Aulonocara varieties as well as compatible hap species to help you build a complete Lake Malawi display. Visit us at 4848oneshop.zakgt.net or contact us directly for current availability — we are happy to advise on species selection, tank ratios, and setup for any budget.
- ✦Ask to see the fish eat before purchasing — a fish that refuses food in the shop is stressed and a risk.
- ✦Purchase at least a group of one male and three females to allow natural social structure.
- ✦Buy from shops that separate Malawi species from other African cichlids — mixed-tank environments indicate low specialist knowledge.