This cichlid species guide covers the three main groups, tank setup, water chemistry, feeding, compatible species, and every mistake we see new keepers make with these extraordinary fish.
African Cichlid Care: A Completely Different Branch of the Hobby
African cichlids do not follow the rules of a typical tropical community tank. They need hard, alkaline water that most fish cannot tolerate, rock formations instead of plants, and a stocking density that looks overcrowded by conventional standards.
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Once you understand why those rules exist, keeping them becomes one of the most rewarding experiences in freshwater fishkeeping.
The vast majority of popular African cichlids come from Lake Malawi, the ninth-largest lake in the world. Its water is ancient, hard, and stable.pH rarely moves below 7.8.
Hardness sits between 10 and 25 dGH. Temperature holds between 76 and 82°F year-round.
Recreating those conditions in a home aquarium is the entire foundation of successful African cichlid keeping.
African Cichlid Groups: Mbuna, Peacocks, and Haps
Lake Malawi cichlids fall into three distinct groups. Each has different behavior, diet, body type, and tank requirements.
Mixing groups incorrectly is the most common beginner mistake.
| Group | Behavior | Diet | Tank Size | Popular Species |
|---|---|---|---|---|
| Mbuna | Rock-dwelling, highly aggressive | Herbivorous (algae, spirulina) | 55 gal minimum | Yellow Lab, Red Zebra, Demasoni |
| Peacocks | Open-water, moderate aggression | Carnivorous (invertebrates) | 75 gal minimum | OB Peacock, Sunshine Peacock, Stuartgranti |
| Haps | Predatory, largest bodies | Piscivorous (fish, invertebrates) | 75-125 gal | Frontosa, Venustus, Livingstonii |
Mbuna are the most popular group for beginners because their colors are bold, they are widely available, and they thrive in the smallest acceptable tank. They are also the most aggressive cichlid in the lake and require careful management.
Peacocks are less aggressive and arguably the most colorful fish in freshwater keeping. Males display electric blues, oranges, and yellows that rival any reef fish.
They work well for keepers who want color without the the full aggression of mbuna.
Haps are the predators. Species like the Frontosa and Venustus grow large and will eat anything small enough to fit in their mouths.
They need the most space and the most careful planning around tank mates.
If you are planning a large display tank and weighing which cichlid family to commit to, our ram cichlid guide covers the South American side of the family: smaller, softer-water fish that suit a completely different tank style than Lake Malawi species.
African Cichlid Tank Setup
The physical setup of an African cichlid tank is unlike any other freshwater aquarium. Plants are largely irrelevant.
Rock formations are everything.
Mbuna are rock-dwellers. They establish territories around specific caves, crevices, and overhangs.
Each fish claims a zone and defends it. The goal of your aquascape is to create enough territory that aggression is distributed across the tank rather than concentrated on one or two fish.
Sand substrate is the correct choice. African cichlids sift sand constantly, searching for food and asserting territory.
Gravel inhibits this natural behavior. Use aragonite sand or pool filter sand as your base.
Aragonite has the added benefit of slowly dissolving into the water, which buffers pH upward and maintains the alkalinity these fish require.
Stack rocks from the substrate up, not from the glass. Rocks resting on glass can shift, break the silicone seal, or tip when a fish excavates the sand beneath them.
Choosing the right filter matters as much as the aquascape. Our aquarium filter guide compares canister and HOB options side by side and identifies which models handle the heavy bioload that a fully stocked mbuna tank produces.
Create multiple distinct zones. A tank with one one large rock pile concentrates all territorial conflict in one area.
A tank with four four or five separate formations distributed across the length gives each dominant fish its own space.
Water Chemistry: The Opposite of Most Tropical Fish
This is where most new keepers struggle. The water parameters for African cichlids are the inverse of what most tropical fishkeeping guides recommend.
Standard community tank advice points toward soft, slightly acidic water.pH 6.8-7.2, low hardness, neutral chemistry. For African cichlids, that water is wrong.
It will stress them, suppress their immune system, and cause slow, steady decline.
| Parameter | Target Range | Never Let It Drop Below |
|---|---|---|
| pH | 7.8-8.5 | 7.5 |
| General Hardness (GH) | 12-20 dGH | 10 dGH |
| Carbonate Hardness (KH) | 10-18 dKH | 8 dKH |
| Temperature | 77-80°F | 74°F |
| Ammonia | 0 ppm | 0 ppm |
| Nitrate | <20 ppm | Keep below 40 ppm |
If your tap water is soft and acidic, you need to harden and buffer it before it goes into the tank. The two most practical methods are crushed coral in the filter and aragonite substrate.
Both dissolve slowly, releasing calcium and bicarbonate that raise both GH and KH simultaneously.
African cichlid salt mixes sold at fish stores are a third option. They dissolve quickly and give you precise control, but they require consistent dosing during every water change.
An African cichlid tank is not a community tank. Do not attempt to blend the two.
The Overstocking Strategy: Why More Fish Means Less Aggression
African cichlid keeping breaks one of the fundamental rules of fishkeeping: do not overstock. With mbuna mbuna especially, controlled overstocking is the recommended management strategy.
Here is the logic. In a sparsely stocked mbuna tank, the dominant male targets a small number of subordinate fish repeatedly.
Those fish cannot escape. They get chased until they are exhausted and die.
In a correctly overstocked tank, aggression is distributed. The dominant male cannot fixate on a single target because there are too many fish to chase.
Each fish gets harassed occasionally rather than constantly.
The standard mbuna stocking formula is one inch of fish per gallon, calculated at adult size, with the the addition of one extra male per group to dilute dominance. Most experienced keepers stock 55-gallon mbuna tanks with 15-20 fish at adult size.
Overstocking only works if filtration keeps pace. A heavily stocked tank produces heavy waste.
You need a canister filter or equivalent rated for at least twice the tank volume, plus weekly water changes of 25-30%.
If you are deciding between a 55-gallon and a 75-gallon as your starting point, our 55-gallon stocking guide walks through the fish count math that applies directly to a mbuna setup at that tank size.
For tank size planning more broadly, the rules change significantly once you move into African cichlid territory. Standard stocking calculators do not account for the aggression-management math these fish require.
Feeding African Cichlids
Diet varies significantly between mbuna and peacocks, and getting it wrong causes real health problems. The most common dietary mistake with mbuna mbuna is feeding them high-protein carnivore foods.
Mbuna are herbivores. Their digestive systems are built for algae, plant matter, and spirulina.
High-protein foods like bloodworms, beef heart, and shrimp-heavy diets cause a condition called Malawi bloat: a rapid bacterial infection of the digestive tract that kills fish within days and is very difficult to treat.
- Mbuna diet: spirulina-based cichlid pellets (70-80% of diet), blanched vegetables like zucchini and spinach, occasional algae wafers. No bloodworms. Minimal shrimp.
- Peacock diet: high-quality cichlid pellets with mixed protein content, frozen brine shrimp, frozen mysis shrimp, small frozen krill. More protein than mbuna, less than haps.
- Hap diet: large cichlid pellets, frozen silversides, whole krill, frozen prawns. Protein-forward diet, fed in larger amounts less frequently.
Feed small amounts two to three times daily. African cichlids are aggressive eaters and dominant fish will eat disproportionately in a single large feeding.
Smaller, more frequent feedings ensure subordinate fish get access to food without having to fight for it during a single mealtime rush.
Mbuna eat algae and plant matter as the core of their diet. Our guide on feeding vegetables to fish covers which blanched vegetables are safe to supplement spirulina pellets and how to prepare them so they sink to where mbuna feed.
Compatible Species: Who Can Live With African Cichlids
The short answer is that very few fish outside the African cichlid world can live with mbuna or peacocks successfully. The combination of hard alkaline water and high aggression eliminates most candidates before they even make it to the tank.
A New World cichlid like the Oscar requires fundamentally different water chemistry than any Lake Malawi species. An Oscar tank runs at pH 6.5-7.5.
An African cichlid tank runs at pH 7.8-8.5. There is no overlap where both thrive simultaneously.
For a peaceful cichlid option, Angelfish are in a completely different category. They are South American, soft-water fish with calm temperaments.
They would be harassed to death in a mbuna tank within hours.
Synodontis catfish from Lake Tanganyika are the most reliable African cichlid companions. Species like Synodontis multipunctatus evolved in similarly hard alkaline water, are large enough to avoid predation, and are fast enough to avoid sustained bullying.
For the cichlid tank bottom, Bristlenose Plecos can work in peacock or hap setups where aggression is lower, but verify the individual pleco's pH tolerance. Many Bristlenose specimens from captive breeding have adapted to a wide range.
Check our pleco compatibility guide before adding one to any cichlid tank.
Breeding: Mouthbrooders With Fascinating Parental Behavior
African cichlids from Lake Malawi are maternal mouthbrooders. The female picks up fertilized eggs into her mouth immediately after spawning and holds them there for 3-4 weeks while the eggs develop into free-swimming fry.
She does not eat during this period. In an aggressive mbuna tank, the stress of being chased while holding a mouthful of fry causes females to spit the eggs prematurely, which kills the clutch.
Breeding in a community African cichlid tank happens naturally, but raising fry to adulthood requires intervention. Here is the standard approach.
Keep a ratio of at least three females per male. This distributes the male's spawning attention and prevents any single female from being harassed continuously.
When you notice a female holding (her throat will be visibly distended and she will stop eating), move her to a separate 20-gallon holding tank with similar water parameters. She will spit the fry on her own within 21-28 days of fertilization.
Once the fry are free-swimming, feed them crushed spirulina flakes and baby brine shrimp. Do not return the female to the main tank immediately. Give her 3-5 days in the holding tank to eat and recover before reintroducing her.
The fry grow fast at 78-80°F. They will be large enough to return to the main tank at around 1 inch, though they still face predation risk from larger adults. A separate grow-out tank is the safest option for the first 6-8 weeks.
In a well-managed tank with the right ratios, mbuna and peacock females will hold clutches every 4-6 weeks. The hobby saying is true: African cichlids breed themselves once conditions are right.
A separate grow-out tank for fry does not need to be elaborate. Our 20-gallon tank guide covers the equipment and stocking approach that works equally well for a fry grow-out setup as for a species display tank.
Common Diseases and Health Problems
African cichlids kept in correct water chemistry are robust fish. The majority of disease events trace directly to one of three causes: incorrect water parameters, wrong diet, or stress from aggression.
Malawi Bloat is the most feared African cichlid disease. It presents as a rapidly swollen abdomen, loss of appetite, and hovering near the surface or bottom.
It progresses fast, often killing within 72 hours. The primary causes are high-protein diet in mbuna and sudden pH crashes.
Treat immediately with metronidazole (Flagyl) and a 30% water change.
Ich (white spot disease) appears as small white grains across the body and fins. Raise temperature to 82°F and treat with a cichlid-safe medication.
Remove activated carbon from the filter before dosing.
Maintaining the correct heater temperature is the single most reliable way to prevent ich outbreaks. Our aquarium heater guide covers which models hold temperature accurately in tanks above 55 gallons, where cheap heaters commonly drift.
Hole-in-the-Head disease presents as pitting along the lateral line and head. It is caused by chronic high nitrates combined with nutritional deficiency.
Improve water quality first, then address diet.
- Malawi Bloat: treat with metronidazole, identify and remove dietary or water quality trigger
- Ich: raise temperature to 82°F, treat with copper-safe cichlid medication
- Hole-in-the-Head: reduce nitrates below 20 ppm, improve diet quality
- Fin damage from aggression: not a disease. Increase stocking density or add more rock formations to redistribute territory
- pH crash: emergency 20% water change with pre-buffered water, add crushed coral to filter immediately
Test pH weekly at minimum. Add crushed coral to your filter media as a passive buffer so that pH cannot crash suddenly between water changes.
Frequently Asked Questions
Get the water chemistry right: pH 7.8-8.5, hard and alkaline. Build a rock-heavy aquascape that distributes territory.
Stock with intention and use controlled density to manage aggression. Feed mbuna herbivore diets and peacocks mixed-protein diets.
Do all of that consistently and you will have one of the most visually stunning tanks in freshwater fishkeeping, with fish that live 10-15 years and breed on their own schedule. Cut corners on water chemistry or tank size and you will spend money replacing fish every few months.