Collection point · Lake Malawi · Tanzania

Hai Reef

HAH-ee REEF (approx.)

The atlas records 19 collection-point forms from Hai Reef, across 10 genera.

11.4358°S 34.9205°E

Hai Reef is a reef off Lake Malawi's Tanzanian shore, about 2 km south-south-west of Chimate.

Where it is

Hai Reef is on the eastern shore of Lake Malawi, in its central third (135 mi south of the lake's northern tip).

Nearest collection points: Undu Reef 5 mi north-west · Chiwindi 11 mi south · Chuwa 12 mi north-west

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) (~263 km) — Conductivity 235 µS/cm

Surface temperature here

Across May–Nov, monthly means run 76 °F to 82 °F — coolest in Aug. Measured by satellite 1995–2023: the daily median of clear readings within 10 km of the site (1010 clear days). The rainy-season months are usually too cloudy to measure and are left blank.

75°78°81°84°Jan: too few clear satellite days (0)–JFeb: too few clear satellite days (0)–FMar: too few clear satellite days (1)–MApr: too few clear satellite days (7)–AMay: 80 °F mean (78 °F–81 °F), 72 clear satellite daysMJun: 78 °F mean (77 °F–80 °F), 133 clear satellite daysJJul: 76 °F mean (76 °F–77 °F), 180 clear satellite daysJAug: 76 °F mean (75 °F–78 °F), 216 clear satellite daysASep: 78 °F mean (76 °F–79 °F), 217 clear satellite daysSOct: 80 °F mean (78 °F–82 °F), 131 clear satellite daysONov: 82 °F mean (81 °F–83 °F), 50 clear satellite daysNDec: too few clear satellite days (3)–D
Surface temperature by month near Hai 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: Hai (Chimate) 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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