Interochromis loocki "Mboko Island"

Mboko Islandm-BOH-koh EYE-land (approx.)

The fish

How this cichlid is built, and everything about how it lives, eats and breeds, is shared with the species — this page doesn't repeat it.

Read the full Interochromis loocki account →

Specific to Mboko Island

  • Collection locality & coordinates
  • Local coloration — best judged from the living-fish photo
  • Kept as a single-provenance line, never crossed with other collection points

Care facts below are the species' — shared with Interochromis loocki.

IUCNLEAST CONCERN · 2025
CARESNOT LISTED
Scientific size5.1 in13 cm total length
Temperature75–81 °F24–27 °C
pH8.6–9.3alkaline
Depth7–10 ft2–3 m
DietGrazes algal aufwuchs/biocover from rocks
BreedingMaternal mouthbrooderSmall; genus-typical, roughly a dozen to a few dozen large eggs/young
Sexual dimorphismYesModest; dominant males color up most strongly while holding territory, but sexes are similar in size and shape, so reliable sexing usually requires venting
PhotographsSee photosGoogle Images →

The Mboko Island population

Interochromis loocki "Mboko Island" is the Mboko Island population of Interochromis loocki, a geographic colour form from the Democratic Republic of the Congo coast of Lake Tanganyika in the north-central part of the lake. It is the same species as Interochromis loocki, distinguished by its collection locality and local coloration; aquarists keep and breed it as a discrete, provenance-labelled line.

Colour reference: living Mboko Island fish at tanganyika.si

About the species

Interochromis loocki is a stocky, rock-grazing cichlid endemic to Lake Tanganyika and the sole member of its genus. To hobbyists it is best known under the old trade label "a Petrochromis-like fish (sold under various 'Petrochromis sp.' trade names)," and that nickname turns out to be more than a marketing convenience: anatomy, gut structure, and recent genome-scale phylogenies all place this fish squarely among the aufwuchs-scraping Petrochromis, even though it carries its own generic name. It is a small fish with a big appetite for algae and a temper to match, occupying a defined depth band on the lake's rocky littoral slopes.

Full Interochromis loocki account →

Sources

  1. tanganyika.si — Interochromis loocki "Mboko Island"
  2. Interochromis loocki — FishBase summary
  3. Eschmeyer's Catalog of Fishes — Limnotilapia loocki / Interochromis loocki
  4. Yamaoka, Hori & Kuwamura (1998), Interochromis, a new genus of the Tanganyikan cichlid fish (abstract, CRC)
  5. Hata & Ochi (2016), Depth and substratum differentiations among coexisting herbivorous cichlids in Lake Tanganyika, R. Soc. Open Sci.
  6. Phylogenomics of trophically diverse cichlids (Singh et al. 2022), Ecol. Evol. — loocki in Petrochromis Clade II