Nine-bar Tropheops
Tropheops novemfasciatus
The Nine-bar Tropheops showcases vibrant blue and yellow stripes along its body, contrasting with its darker dorsal and anal fins.
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About the Nine-bar Tropheops
A rock-dwelling mbuna from Lake Malawi, this fish hugs shallow, sheltered bays and spends its day grazing algae from rocks and plant leaves. It is a maternal mouthbrooder with spirited territorial displays, especially around rocky hiding spots.
Quick Facts
Size
9 cm SL
Temperament
Semi-aggressive
Difficulty
Intermediate
Min Tank Size
80 gallons
Lifespan
5-10 years
Origin
East Africa - Lake Malawi
Diet
Herbivore - aufwuchs grazer; offer spirulina flakes, vegetable-based pellets, and occasional suitable frozen foods
Water Parameters
24-26°C
7.5-8.5
3-6 dGH
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This species needs 24-26°C in a 80 gallon tank. Use our heater calculator to find the right wattage.
Calculate heater sizeCare Notes
- Start them in at least 80 gallons and build a rock-heavy scape with tight caves and broken sight lines, plus some open cruising space; this matches their rock-dwelling mbuna lifestyle despite their small adult size (about 9 cm SL).
- Hold water at 24–26 °C with pH ~7.5–8.5 and strong alkalinity (KH ~6–8 dKH). Note Lake Malawi’s GH is naturally low (~3–5 °dGH), so prioritize stable, well‑buffered alkalinity over pushing high GH.
- Feed like an aufwuchs grazer: spirulina flakes and vegetable-based pellets as staples, with only occasional suitable frozen foods; avoid protein-heavy diets to dodge bloat.
- Pair with other robust Lake Malawi mbuna that share a herbivorous diet; skip peaceful or long-finned fish, and avoid similar-looking Tropheops in tight quarters to reduce fights.
- Provide more rock shelters than fish so subdominant individuals can duck out; cramped or bare setups spike aggression in this semi-aggressive species.
- Let some green algae grow on the rocks so they can graze between meals; they spend much of the day picking at hard surfaces and plant leaves.
- Breeding is maternal mouthbrooding: offer rocky spawning spots, and if a female is holding, consider moving her to a quiet, rock-filled section; released fry take finely crushed vegetable-based foods well.
- Expect 5-8 years with steady conditions and a plant-based diet; sudden parameter swings and meaty foods are common pitfalls.
Compatibility
Good Tankmates
- Other medium-aggression Lake Malawi mbuna with contrasting patterns, such as Labidochromis caeruleus (Yellow Lab) or Iodotropheus sprengerae (Rusty cichlid) - similar size/temperament and suited to hard, alkaline water
- Pseudotropheus acei (acei) - relatively peaceful mbuna that helps diffuse aggression in large, rock-heavy setups
- Synodontis from the Malawi system (e.g., Synodontis njassae) or suitable Rift Synodontis in similar chemistry—armored, fast bottom dwellers that ignore mbuna territories
- Bristlenose plecos (Ancistrus spp.) only with caution—provide abundant caves, introduce carefully, and monitor; many sources advise avoiding mixing Ancistrus with aggressive mbuna due to harassment risk
- Its own species in a proper harem (1 male with 3-4 females); multiple males only in very large, rock-filled tanks to spread sight lines
Avoid
- Highly aggressive mbuna like Melanochromis auratus or Labeotropheus spp. that often outcompete and harass smaller Tropheops
- Non-mbuna Malawi cichlids such as Aulonocara (peacocks) and most Haps (e.g., Placidochromis, Protomelas) - too peaceful and stressed by mbuna aggression and herbivore diet
- Slow or long-finned fish (angelfish, gouramis, bettas) - wrong water chemistry and prone to fin damage
- Small community fish and invertebrates (tetras, rasboras, shrimp, small snails) - mismatched water and likely to be harassed or eaten
Nine-bar Tropheops (Tropheops novemfasciatus) is a small Lake Malawi mbuna that spends its days close to the rocks, picking at aufwuchs and algae. Expect spirited, territorial displays around favored crevices. It stays compact at about 9 cm SL but carries the attitude of a rock-dweller, with a lifespan of 5-8 years and an intermediate care level.
- Origin: East Africa - Lake Malawi
- Water: freshwater
- Max size: 9 cm SL
- Temperament: semi-aggressive
- Lifespan: 5-8 years
- Diet: herbivore (aufwuchs grazer)
- Temperature: 24-26 C
- pH: 7.5-8.5; Hardness: 5-15 dGH
- Minimum tank size: 80 US gallons
Origin and natural habitat
This species is a rock-dwelling mbuna from Lake Malawi. In the lake it hugs shallow, sheltered bays, browsing algae and micro-life from rock faces and even from the surfaces of tough leaves. The rocky terrain offers constant cover, short dashes between perches, and many small territories packed into a small area.
Aquarium setup and water
An 80-gallon tank or larger is recommended. Although the fish is small, it is territorial, and the extra footprint helps break up sightlines and reduce conflict. Build a secure rockscape with numerous caves and narrow crevices so multiple fish can claim their own spots. Allow some rock surfaces to develop algae and biofilm for natural grazing.
- Temperature: 24-26 C
- pH: 7.5-8.5
- Hardness: 5-15 dGH
- Stable, well-filtered water with good oxygenation
Expect them to pick at soft plants. If you use plants, choose hardy, tough-leaved species and protect roots among the rocks.
Diet and feeding
Nine-bar Tropheops is an herbivorous aufwuchs grazer. Offer a plant-focused diet and let them browse natural growth on the rocks between meals.
- Staples: spirulina flakes and quality vegetable-based pellets
- Occasional treats: small portions of suitable frozen foods
- Feed modest portions 1-2 times daily to prevent overeating
Avoid frequent, rich animal-protein foods. Herbivorous Lake Malawi cichlids are prone to digestive issues if fed heavy, meaty diets.
Behaviour and tankmates
Semi-aggressive with clear territorial instincts, especially around rocky hiding spots. Displays and short chases are normal as individuals hold small territories. It is a maternal mouthbrooder in nature; females carry eggs and developing young in the mouth.
- Provide numerous rock piles and broken sightlines to spread out territories.
- House with other robust Lake Malawi mbuna of similar size and temperament.
- Avoid very peaceful fish and long-finned species that cannot handle cichlid sparring.
Common problems and how to avoid them
- Aggression injuries: Use a larger tank (80+ gallons), dense rockwork, and multiple retreats to reduce line-of-sight and competition.
- Diet-related bloat: Keep the diet primarily plant-based; offer only occasional, modest portions of suitable frozen foods.
- pH and hardness drift: Maintain alkaline, moderately hard water within the listed ranges; sudden changes stress mbuna.
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