Diplotaxodon greenwoodi "Chizumulu Island"

Chizumulu Islandchee-zoo-MOO-loo 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 Diplotaxodon greenwoodi account →

Specific to Chizumulu 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 Diplotaxodon greenwoodi.

IUCNLEAST CONCERN · 2018
CARESNOT LISTED
Scientific size9.7 in24.7 cm standard length
Temperature75–82 °F24–28 °C
pH7.7–8.8alkaline
Depth164–485 ft50–148 m
DietPelagic feeder (small fish & zooplankton)
BreedingMaternal mouthbrooderUndocumented; genus-typical a few dozen relatively large eggs
Sexual dimorphismYesBreeding males darken over the back, head and fins while retaining silver sides and carry multiple yellow eggspots on the anal fin; females and non-breeding fish are plainer silver.
PhotographsSee photosGoogle Images →

The Chizumulu Island population

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

Colour reference: living Chizumulu Island fish at malawi.si

About the species

Diplotaxodon greenwoodi is the largest member of a genus of deep-water haplochromine cichlids found only in Lake Malawi, the kind of fish almost no aquarist will ever see alive. A heavy-bodied, silver predator with a small eye and a steeply upturned, almost shark-like gape, it patrols the dim shelf and reef zones tens of meters down. Described in 1986 as a 'paedophage' thought to steal fry from brooding females, it is now read more simply as a piscivore that swallows juvenile cichlids whole.

Full Diplotaxodon greenwoodi account →

Sources

  1. malawi.si — Diplotaxodon greenwoodi "Chizumulu Island"
  2. Diplotaxodon greenwoodi — FishBase species summary
  3. Eschmeyer's Catalog of Fishes — Diplotaxodon greenwoodi (species record)
  4. Stauffer & McKaye 1986 — Description of a paedophagous deep-water cichlid from Lake Malawi (Proc. Biol. Soc. Washington 99:29–33)
  5. Stauffer, Phiri & Konings 2018 — Description of two deep-water fishes of the genus Diplotaxodon (Proc. Biol. Soc. Washington 131:90–100)
  6. Turner et al. 2004 — Identification and biology of Diplotaxodon, Rhamphochromis and Pallidochromis (Cichlid Press / Bangor research record)