Other names: Greenhead tilapia, Greenhead bream
The Longfin Tilapia, Oreochromis macrochir, is a freshwater fish native to southern Africa, primarily inhabiting the Congo, Zambezi, and Kafue River systems. Known for its extended pectoral fins, this species thrives in calm, deep waters with abundant aquatic vegetation. It is important in local fisheries and aquaculture due to its ability to grow quickly and adapt to various environments.
Other names
Greenhead tilapia, Greenhead bream
Length
~18" (max 43)
Weight
~1" (max 4)
Water
Fresh
Water Temp
18-35° F
Depth
5-14 ft
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Longfin Tilapia favor quiet, deep waters with dense aquatic vegetation, which provide shelter and feeding opportunities
They are typically found in rivers, lakes, and floodplains, often in areas with slow-moving water
This species feeds mainly on detritus, algae, and diatoms, with juveniles also consuming small invertebrates
Although primarily freshwater, they have low tolerance for salinity and are not found in brackish environments
Breeding occurs in summer, with males constructing and defending nests in shallow waters
The nests are distinctive, volcano-shaped mounds where females deposit eggs, which are then fertilized by the male
Females brood the fertilized eggs in their mouths, providing protection until the young are ready to hatch
After hatching, fry remain in shallow, vegetated areas for protection and gradually move into deeper waters as they grow