Collection point · Lake Malawi · Malawi

Gallireya Reef

gah-lee-REH-yah REEF (approx.)

The atlas records 12 collection-point forms from Gallireya Reef, across 9 genera.

10.4994°S 34.2353°E

Gallireya Reef is a reef off Lake Malawi's Malawian shore, about 2 km south-south-west of Young's Bay.

Where it is

Gallireya Reef is on the western shore of Lake Malawi, in its northern third (71 mi south of the lake's northern tip).

Nearest collection points: Youngs Bay 1 mi north-east · Lion Point 2.2 mi south · Kavumu Rock 3.7 mi north-east

Shore, third and distances are measured from the coordinates above against the lake’s mapped outline.

The water

Lake-wide measured chemistry of Lake Malawi — collection points share their lake's water; site-specific figures are shown only where the literature records them.

Temperature75.2–84.2 °F24–29 °C
pH8.2–8.6alkaline
Hardnessmoderately soft, alkaline, well-buffered79 ppm
Conductivity≈250–260 µS/cmmeasured range

Nearest measured station: Salima (south-east shore) (~362 km) — Conductivity 235 µS/cm

Surface temperature here

Across May–Nov, monthly means run 76 °F to 81 °F — coolest in Aug. Measured by satellite 1995–2023: the daily median of clear readings within 10 km of the site (848 clear days). The rainy-season months are usually too cloudy to measure and are left blank.

75°78°81°Jan: too few clear satellite days (0)–JFeb: too few clear satellite days (3)–FMar: too few clear satellite days (1)–MApr: too few clear satellite days (8)–AMay: 80 °F mean (79 °F–81 °F), 48 clear satellite daysMJun: 78 °F mean (77 °F–80 °F), 105 clear satellite daysJJul: 77 °F mean (76 °F–78 °F), 127 clear satellite daysJAug: 76 °F mean (75 °F–77 °F), 193 clear satellite daysASep: 77 °F mean (76 °F–78 °F), 199 clear satellite daysSOct: 79 °F mean (77 °F–81 °F), 112 clear satellite daysONov: 81 °F mean (80 °F–82 °F), 48 clear satellite daysNDec: too few clear satellite days (4)–D
Surface temperature by month near Gallireya Reef — dot = mean, bar = typical range (10th–90th percentile), “–” = too cloudy to measure.

Temperature: ESA Climate Change Initiative, Lakes_cci v3.0 (Asfour et al. 2026; doi:10.5285/a56dba09df8a42ec9fba8b8c7a5e1f69). Chemistry on this page remains the lake's own.

Sources
  1. malawi.si — Lake Malawi interactive locations map: Gallireya Reef

Each entry below is the population of that species recorded here — the form aquarists keep and breed as a distinct, provenance-labelled line. Crossing forms from different collection points is considered hybridisation in the hobby.

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