Petrotilapia sp. "Fuscous" "Jalo Reef"

Jalo ReefJAH-loh REEF (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 Petrotilapia sp. "Fuscous" account →

Specific to Jalo Reef

  • 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 Petrotilapia sp. "Fuscous".

CARESNOT LISTED
Scientific size5.5 in14 cm total length
Temperature75–82 °F24–28 °C
pH7.7–8.6alkaline
Hardness (GH)very hardup to 446 ppm
Depth3–49 ft1–15 m
DietSpecialist algae scraper — turf, diatoms and cyanobacteria stripped from wave-exposed rock with hooked, recurved teeth
Breedingmaternal mouthbroodernot documented for this form; genus-typical, a few dozen eggs
Sexual dimorphismYesExtreme, as throughout the genus: males dusky brown to blue-black, females plain golden-brown or tan.
PhotographsSee photosGoogle Images →

The Jalo Reef population

Petrotilapia sp. "Fuscous" "Jalo Reef" is the Jalo Reef population of Petrotilapia sp. "Fuscous", a geographic colour form from the Malawi coast of Lake Malawi in the south-central part of the lake. It is the same species as Petrotilapia sp. "Fuscous", distinguished by its collection locality and local coloration; aquarists keep and breed it as a discrete, provenance-labelled line.

Colour reference: living Jalo Reef fish at malawi.si

About the species

Petrotilapia sp. "Fuscous" is an undescribed rock-scraping mbuna from the mid-western shore of Lake Malawi, recorded from the Maleri Islands group and nearby island reefs. Petrotilapia is the lake’s genus of dedicated algae scrapers — deep-bodied, heavily muscled fish with several rows of hooked, recurved teeth built to strip tough algal turf from wave-battered vertical rock. The genus is notoriously under-described: extreme sexual dichromatism and strong locality-based colour variation mean many populations are known only by trade names, of which this is one. "Fuscous" — Latin for dusky or dark brown — points to its colouration. It has no describing author, FishBase entry, or IUCN status.

Full Petrotilapia sp. "Fuscous" account →

Sources

  1. malawi.si — Petrotilapia sp. "Fuscous" "Jalo Reef"
  2. malawi.si — Petrotilapia species database
  3. Cichlid Room Companion — Petrotilapia genus profile
  4. Konings, A. — Malawi Cichlids in their Natural Habitat (Cichlid Press)