Frontosa
Cyphotilapia frontosa
Min Tank Size
475L
Adult Size
35.6 cm
Lifespan
20 years
School Size
5+
About
Cyphotilapia frontosa comes from the deep rocky drop-offs of Lake Tanganyika, where it cruises in large schools at depths between 10 and 50 meters hunting sleeping cichlids in the early morning hours. That hunting strategy tells you a lot about who this fish is. Slow, deliberate, almost regal in how it carries itself.
The bold alternating black and white vertical bands are striking enough on their own, but the crowning detail is the pronounced nuchal hump that develops on mature males, giving the fish a distinctly prehistoric profile that no other species in the hobby quite matches. Females develop a hump too, though noticeably smaller.
Keeping frontosa well means committing to hard, alkaline, highly oxygenated water. pH should sit between 7.8 and 9.0, with hardness on the higher end and temperatures kept slightly cooler than most tropical tanks, around 24 to 27 degrees Celsius. A 380-liter tank is a realistic minimum for a colony, and a proper setup will have open sandy areas alongside large flat rocks or cave structures where dominant fish can establish territory without constant conflict.
Diet is straightforward for a carnivore. Meaty frozen foods like krill, silversides, and mussel work well, and most individuals can be trained onto quality pellets over time. Live feeders are rarely necessary and can introduce disease. They're slow feeders, so if you're mixing species, make sure frontosa aren't being outcompeted at feeding time.
For anyone drawn to large, unhurried, genuinely impressive fish, frontosa are hard to beat. They don't demand constant attention, but they do demand that you get the fundamentals right from day one.
Water Parameters
Temperature
°CpH
GH
dGHKH
dKHSwimming Level
Flow Preference
Keeping multiple Frontosa together
Frontosa are shoaling fish and need company of their own kind. Keep a group of at least 5. Smaller groups leave them stressed, washed-out in color, and prone to hiding.
Compatibility
Frontosa do best in a species-only colony or with other large Lake Tanganyika cichlids that can hold their own, such as large Petrochromis or Tropheus, though those pairings require careful monitoring and a very large tank. Other Tanganyikan cichlids of similar water requirements but different size classes, like some of the larger shell dwellers, rarely work because frontosa simply see small fish as food. Avoid anything under roughly 12 centimeters unless you're comfortable losing it. Peacock and hap cichlids from Lake Malawi are sometimes kept alongside frontosa by experienced hobbyists, since the water parameters overlap enough, but purists prefer single-lake setups.
Commonly kept with
Species this one is most often paired withCommonly tried but avoid
Often paired, but shouldn't beCare Notes
The most common mistake is underestimating tank size and the timeline. People buy juvenile frontosa at 5 centimeters, put them in a 200-liter tank, and plan to upgrade later, but later often doesn't happen in time. A second failure mode is trying to keep one alone. Frontosa are genuinely social fish and single specimens frequently become reclusive and stop eating. Groups of six or more fare dramatically better. Water quality is also critical given their high bioload, oversized filtration and regular large water changes are not optional. Skimping on either shortens their lifespan noticeably.
Behavior & Aggression
Frontosa aggression is mostly about space and hierarchy rather than outright hostility. In a colony, a dominant male will establish himself and occasionally chase subordinates, but the behavior rarely escalates to serious injury if the tank is large enough and structured with enough cover. The real danger is conspecific aggression during spawning, when a mouthbrooding female may be harassed relentlessly by other colony members. Adding a small breeding tank or divider during brooding periods is a smart precaution. They won't bother most similarly sized cichlids unless those fish are small enough to be prey.
Things to Know
- Grows very slowly, takes 3-5 years to reach full size, plan tank accordingly
- Will eat any fish or shrimp small enough to swallow whole
- Needs groups of 6+ or a bonded pair, lone fish often refuse to eat
- Hard alkaline water is non-negotiable, do not keep in soft or acidic tanks
- Long-lived fish, expect a 20+ year commitment
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