Mtosi
m-TOH-see (approx.)
Also traded as “Mtosi (Red Namansi)”, “Mtosi Kushangaza”
The atlas records 23 collection-point forms from Mtosi, across 15 genera.
7.9500°S 30.7800°E
Where it is
Mtosi is in open water about 4.3 mi off the eastern shore, in the southern third of Lake Tanganyika (319 mi south of the lake's northern tip).
Nearest collection points: Fulwe Rocks 2.9 mi east · Kanena Point 4 mi east · Kisimba Rocks 4 mi 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 Tanganyika — collection points share their lake's water; site-specific figures are shown only where the literature records them.
Nearest measured station: Mpulungu (south basin) (~97 km) — Temperature 24.5 °C · pH 8.9 · Conductivity 662 µS/cm · Visibility (Secchi) 11.9 m
Surface temperature here
Across Mar–Nov, monthly means run 76 °F to 82 °F — coolest in Jul. Measured by satellite 1995–2023: the daily median of clear readings within 10 km of the site (1514 clear days). The rainy-season months are usually too cloudy to measure and are left blank.
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.
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.