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No federal permit to keep

Compressiceps

Altolamprologus compressiceps

Also known as compressed cichlid, yellow calvus

Fishes › Cichlids (Cichliformes) › Cichlidae (Cichlids)

Altolamprologus compressiceps, locally known as lupapa, is a species of fish in the family Cichlidae.

Aquarium hobby
Experience: Intermediate
Compressiceps
Photo: H. Zell, CC BY-SA 3.0, via Wikimedia Commons
FamilyCichlids
Adult lengthup to 4.9 in
WaterFreshwater
HabitatLives in freshwater

Care at a glance

Species-specific aquarium care

  • Tank: At least 24 in long and 12 in front to back for one adult (adults commonly reach about 4.8 in / 12.3 cm).
  • Water: Freshwater.
  • Temperature: 73–77°F (range recorded for this species).
  • pH: 6.5–7.5.
  • Hardness: 8–12 dGH.
  • Layout: Uses both the bottom and open water: give open swimming space plus cover near the substrate.
  • Diet: A predator: feed meaty foods sized to its mouth (frozen fish, shrimp, worms); it will eat tankmates that fit in its mouth. FishBase classes it as a carnivore.
  • Availability: Rarely or never seen in the aquarium trade; expect to source it from specialists or not at all.

Calculated from this species' own FishBase record: tank size from its typical adult length and swimming zone, water values from its recorded ranges. The group guide below fills in general care.

Care guide

Species care notes

  • Tank: a base of at least 47 × 18 in (roughly 64 US gallons); space needed is rated “large tank”.
  • Water: hard, alkaline water, 75–82 °F, pH 8–9, 7–25 dGH.
  • Behaviour: in a pair.
  • Difficulty: Moderate (Seriously Fish rating).

Short excerpts from the species profile:

  • Setup: “A sandy substrate with some complex structures of piled rocks arranged to fill much of the available space represents the ideal environment.”
  • Diet: “A specialised carnivore feeding mostly on invertebrates, crustaceans and smaller fishes in nature with its elongate mouthparts adapted for insertion into cracks and crevices between rocks.”
  • Tankmates: “Best maintained as a single pair but can be maintained in groups in larger aquaria.”
  • Breeding: “A substrate spawner which naturally lays its brood in crevices or cavities among rocks, typically of a size so small only the female can fit inside.”

From the Seriously Fish profile for this species, which has the full habitat, maintenance, diet, behaviour and breeding write-up 167

Group care guide

Lake Tanganyika cichlids

Applies to most species in this group. Habitat: Rocky reefs, shell beds and sand of Lake Tanganyika. Individual species can differ, so compare with the species numbers above and the linked sources.

Housing & setup

  • Use species-specific alkaline-water parameters and stable, well-oxygenated conditions. For N. multifasciatus, Seriously Fish gives pH 7.5–9.0 and general hardness 8–25 dGH.
  • Shell-dwellers need beds of empty snail shells; rock-dwellers like Julidochromis need stacked rockwork; Tropheus need large groups and spacious tanks.

Sources 117119164118256273

Climate & lighting

Water76–81°F

Sources 117119164118256273

Diet

  • Tropheus moorii needs a vegetable-based staple with small suitable live/frozen supplements. Other Tanganyikans need their own feeding plan; shell-dweller and predator diets differ.

Sources 117119164118256273

Social life

  • Often pair- or colony-forming and territorial; research each genus.

Sources 117119164118256273

Health watch

  • Tropheus are prone to bloat on rich foods; sudden water changes stress Tanganyikans.

Sources 117119164118256273

Understanding the animal

This species is part of a group that hobbyists, aviculturists or zoos keep widely (Cichlids), so it's included for completeness. It may be rare in captivity itself, or not kept at all. Use the group guide as a starting point and look for species-specific advice from experienced keepers.
About this animal

About this animal

It is endemic to the shallow rocky areas of Lake Tanganyika.

Quoted from the Wikipedia article “Altolamprologus compressiceps” (CC BY-SA 4.0) 174

In the wild

In the wild

From this species’ own FishBase record (habitat, bottom type, water and breeding data), not its family. Good care copies these conditions.1

Where it livesLives in freshwater, in lakes. Uses both the bottom and open water.
Water it lives inFreshwater, 73–77 °F (23–25 °C), pH 6.5–7.5, hardness 8–12 dH.
ClimateTropical climate.
Wild dietHunting macrofauna (predator).
Behavior to plan forBreeding: clutch tenders.

What this means for care

  • Keep water within its wild range, 73–77 °F.
  1. FishBase species summary: Altolamprologus compressiceps
Native climate (measured)

Native climate (measured)

Warm-season highsabout 89°F (up to 91°F in the hottest sampled areas)
Cool-season lowsabout 63°F (down to 57°F in the coldest sampled areas)
Average temperature72–80°F across sampled records
Relative humidity54–70% on average (driest month about 46%)
Rainfallabout 1010 mm a year, with strong wet and dry seasons

Measured at 87 wild occurrence records sampled against WorldClim 2.1 climate data (1970–2000 averages). Air conditions in the range are ecological context, not enclosure settings: microhabitats such as burrows, leaf litter or basking rocks can be cooler, warmer or more humid.

From the sources

From the sources

Quoted from the matching sections of reputable sources for this exact species. Specialist databases are used first; Wikipedia (community-edited, CC BY-SA 4.0) only fills gaps. Other sources are short credited quotes.

OverviewAltolamprologus compressiceps, locally known as lupapa, is a species of fish in the family Cichlidae. It is endemic to the shallow rocky areas of Lake Tanganyika. It is not considered threatened by the IUCN. — Wikipedia (community-edited)
Where it livesHome ranges Population dynamics Growth parameters Max. ages / sizes Length-weight rel. Length-frequencies Mass conversion Recruitment Abundance Life cycle Reproduction Maturity Maturity/Gills rel. — FishBase
Appearance and sizeA. compressiceps are close relatives to A. calvus and can be distinguished by their shorter jaws and turned up snout. Calvus have a long sloping face, less distinct bars, and more distinct spots. Several local variants exist, and some may prove to be distinct species or subspecies. — Wikipedia (community-edited)
BiologyLake Tanganyika holds at least 250 species of cichlid fish and there are still undescribed species in the lake. Almost all (98%) of the Tanganyika cichlids are endemic to the lake and it is thus an important biological resource for the study of speciation in evolution. — Wikipedia (community-edited)

Data and studies

The numbers

The numbers

Each bar is what one source reports. Where several sources weigh in, the dashed gold band marks their average.

Adult length

Average of sources4.8in
FishBase 1644.8
Seriously Fish species profiles 1674.9

Maximum recorded length. Measured as total length. Fish in home aquariums often stay smaller than wild records.

Water temperature

Average of sources74–79.5°F
FishBase 16473–77
Seriously Fish species profiles 16775–82

Range the species tolerates in nature; aim for the middle.

pH

Average of sources7.2–8.2
FishBase 1646.5–7.5
Seriously Fish species profiles 1678–9

Water hardness

Average of sources7.5–18.5dGH
FishBase 1648–12
Seriously Fish species profiles 1677–25

Minimum tank footprint

Reported47in
Seriously Fish species profiles 16747

Seriously Fish recommends a tank base of at least 47 × 18 in (about 64 US gallons).

Sources for this sheet

  1. FishBase (Froese & Pauly, eds.), version 24.07 Peer-reviewed researchThe global scientific database on fishes, maintained by a consortium of research institutions; every value is referenced.
  2. Seriously Fish species profiles Experienced keeper or breederLong-running aquarium reference written and peer-checked by experienced fishkeepers and ichthyologists; each profile covers habitat, tank size, water, diet, behaviour and breeding.
  3. Merck Veterinary Manual: Management of aquarium fish Zoo, university or veterinaryThe Merck Veterinary Manual: a standard veterinary reference written and reviewed by veterinary specialists.
  4. Merck Veterinary Manual: Types and features of aquatic systems Zoo, university or veterinaryThe Merck Veterinary Manual: a standard veterinary reference written and reviewed by veterinary specialists.
  5. Merck Veterinary Manual: Nutritional diseases of fish Zoo, university or veterinaryThe Merck Veterinary Manual: a standard veterinary reference written and reviewed by veterinary specialists.
  6. Seriously Fish — Neolamprologus multifasciatus Zoo, university or veterinaryAdded in the 2026 source-checked care-guide review.
  7. Seriously Fish — Tropheus moorii Zoo, university or veterinaryAdded in the 2026 source-checked care-guide review.
  8. Wikipedia (species article) Community referenceFree encyclopedia; useful overviews with their own citations. Intro text is quoted under CC BY-SA 4.0.
  9. iNaturalist (captive observations) Community referenceCommunity observation platform run by the California Academy of Sciences and National Geographic; observations marked captive show animals living in homes, zoos and aquariums.