Identity and search names
- Common name
- Multifasciatus shell dweller
- Scientific name
- Neolamprologus multifasciatus
- Other names
- Multifasciatus shell dweller, Multies, Neolamprologus multifasciatus
- Category
- Freshwater fish
- Group
- African Rift Lake cichlids
- Origin
- Shell beds and sandy littoral zones of Lake Tanganyika
- Review outcome
- PASSED
Environment and housing
- Environment
- Freshwater
- Care level
- Intermediate
- Adult size
- Males usually 4–5 cm; females about 3–4 cm total length
- Expected lifespan
- About 5–8 years
- Minimum housing
- At least 90 L with a broad footprint for a starter colony and many more shells than fish
- Temperature
- 24–27 °C
- pH
- 7.8–9.0
- Hardness or minerals
- Hard to very hard with stable carbonate buffering
- Salinity
- Freshwater; do not add salt routinely
- Lighting
- Moderate
- Social structure
- Maintain a colony with a dominant male, several females and subordinate or juvenile fish; every fish needs access to multiple suitable shells
- Placement or swimming zone
- Bottom over sand and shell beds
- Temperament
- Territorial around shells but socially structured and suitable for colony housing
- Compatibility
- Best as a species colony; in larger Tanganyika setups use upper-water fish that do not enter shell territories
- Habitat structure
- Fine sand, a dense bed of correctly sized empty shells, hard alkaline water, gentle flow and open bottom area for colony expansion
Feeding and nutrition
- Diet
- Tiny crustaceans, zooplankton, insect larvae and fine sinking or slowly falling cichlid foods
- Feeding frequency
- Feed small portions once or twice daily so food reaches every shell territory without fouling the sand
Breeding and reproduction
- Breeding or reproduction
- A female lays eggs deep inside her shell and guards eggs and tiny fry. Colonies may contain several simultaneous broods and jointly defend the shell field
- Parental care
- Female guards the shell and early fry; the wider colony contributes territorial defence
System demands
- Filtration
- Use mature biological filtration sized for the full adult group and feeding load, with intake protection where juveniles, long fins or small fish are present. Provide steady turnover without preventing normal swimming or resting.
- Aeration
- Maintain strong surface gas exchange and stable dissolved oxygen. Increase aeration during warm weather, medication, transport recovery, breeding crowding or any ammonia or nitrite event.
- Maintenance
- Test ammonia, nitrite and nitrate, remove waste from feeding and shelter zones, and perform regular temperature- and chemistry-matched water changes before nitrate or dissolved organics accumulate.
Detailed husbandry
- Identity scope
- This profile applies to Neolamprologus multifasciatus from Lake Tanganyika. Locality and species identity should remain distinct from other small shell dwellers, especially N. similis.
- Adult size and space
- Males usually 4–5 cm; females about 3–4 cm total length. At least 90 L with a broad footprint for a starter colony and many more shells than fish. Plan around adult dimensions, activity, social structure, aggression and waste production rather than sale size.
- Social structure
- Maintain a colony with a dominant male, several females and subordinate or juvenile fish; every fish needs access to multiple suitable shells
- Placement or swimming zone
- Primary zone: Bottom over sand and shell beds. Keep that zone usable for movement, feeding and refuge.
- Feeding ecology
- Tiny crustaceans, zooplankton, insect larvae and fine sinking or slowly falling cichlid foods
- Feeding plan
- Feed small portions once or twice daily so food reaches every shell territory without fouling the sand
- Water stability
- Maintain 24–27 °C; pH 7.8–9.0; hardness/minerals: Hard to very hard with stable carbonate buffering. Stable oxygenation and nitrogen-cycle control matter more than chasing one exact number.
- Adult projected load
- Plan capacity for Maintain a colony with a dominant male, several females and subordinate or juvenile fish; every fish needs access to multiple suitable shells at the documented adult size (Males usually 4–5 cm; females about 3–4 cm total length) in At least 90 L with a broad footprint for a starter colony and many more shells than fish. Include feeding intensity, territorial behaviour and breeding growth rather than counting sale-size juveniles.
- Filtration
- Use mature biological filtration sized for the full adult group and feeding load, with intake protection where juveniles, long fins or small fish are present. Provide steady turnover without preventing normal swimming or resting.
- Aeration
- Maintain strong surface gas exchange and stable dissolved oxygen. Increase aeration during warm weather, medication, transport recovery, breeding crowding or any ammonia or nitrite event.
- Maintenance
- Test ammonia, nitrite and nitrate, remove waste from feeding and shelter zones, and perform regular temperature- and chemistry-matched water changes before nitrate or dissolved organics accumulate.
- Habitat structure
- Fine sand, a dense bed of correctly sized empty shells, hard alkaline water, gentle flow and open bottom area for colony expansion
- Compatibility plan
- Best as a species colony; in larger Tanganyika setups use upper-water fish that do not enter shell territories
- Breeding plan
- A female lays eggs deep inside her shell and guards eggs and tiny fry. Colonies may contain several simultaneous broods and jointly defend the shell field Parental care: Female guards the shell and early fry; the wider colony contributes territorial defence.
- Quarantine
- Quarantine new fish in a separate cycled aquarium with dedicated equipment. Match temperature and mineral chemistry gradually, confirm feeding and normal respiration, and never add transport water to the established aquarium.
- Welfare checks
- Maintain the stated adult space and social structure, verify feeding and intervene early when injury, exclusion, weight loss, abnormal respiration or altered behaviour appears. Tiny adult size does not remove territorial needs. Too few shells, coarse substrate or a narrow footprint creates chronic exclusion and aggression.
- Biosecurity and release
- Never release fish, fry, eggs, aquarium water, sediment, plants or live foods into drains, dams or natural waterways. Confirm current Australian import conditions and South Australian possession, trade and movement rules before acquisition or transfer.
- Main risk
- Tiny adult size does not remove territorial needs. Too few shells, coarse substrate or a narrow footprint creates chronic exclusion and aggression.
- Overridable warnings
- Tiny adult size does not remove territorial needs. Too few shells, coarse substrate or a narrow footprint creates chronic exclusion and aggression. Any override must still preserve adult space, social welfare, stable chemistry, oxygen and filter capacity.
Welfare and risk
- Welfare checks
- Maintain the stated adult space and social structure, verify feeding and intervene early when injury, exclusion, weight loss, abnormal respiration or altered behaviour appears. Tiny adult size does not remove territorial needs. Too few shells, coarse substrate or a narrow footprint creates chronic exclusion and aggression.
- Main warning
- Tiny adult size does not remove territorial needs. Too few shells, coarse substrate or a narrow footprint creates chronic exclusion and aggression.
- Biosecurity
- Never release fish, fry, eggs, aquarium water, sediment, plants or live foods into drains, dams or natural waterways. Confirm current Australian import conditions and South Australian possession, trade and movement rules before acquisition or transfer.
Sources
Source note
Current identity or scope, husbandry, system-demand, welfare and Australian biosecurity evidence checked; active retired-source links removed; all AquaNexus wording is original.
- Eschmeyer’s Catalog of Fishes — Neolamprologus multifasciatus — Current accepted-name, synonym, family and habitat check
- Eschmeyer’s Catalog of Fishes — Neolamprologus multifasciatus — Accepted-name, synonym and taxonomic-placement cross-check
- Animal Behaviour — social groups of Neolamprologus multifasciatus — Current social organisation, shell territories and cooperative defence cross-check
- IUCN Red List search — Neolamprologus multifasciatus — Conservation-status and wild-provenance cross-check
- PIRSA — South Australian noxious fish list — Current South Australian possession and trade restriction cross-check
- DAFF — importing live ornamental fish to Australia — Current Australian live-fish import pathway and permitted-species warning