Yellow-tail Tropheus

Tropheus duboisi · Fish, Vertebrate, Cold-blooded, Wild

Yellow-tail Tropheus

Animal Family

Cichlidae, order Cichliformes, class Actinopterygii

Animal Category

Freshwater Animal

Breed / Variety

Maswa variety

Conservation Status

Least Concern, stable wild populations in Lake Tanganyika, local threats from overfishing for the aquarium trade.

About This Creature

Robust, deep-bodied cichlid growing up to 4-5 inches in length. Adults feature a dark brown to black body with a striking bright yellow caudal fin and dorsal fin margin, contrasted with subtle bluish highlights around the head.

Physical Characteristics

Compressed oval body shape, large eyes, thick lips adapted for scraping algae, powerful fins with prominent yellow coloration on the dorsal and tail fins, and smooth scales.

Behavior & Temperament

Aggressive and territorial schooling fish, highly active during the day, communicates through color changes and body posturing, maternal mouthbrooder.

Habitat & Diet

Origin Region

Lake Tanganyika, East Africa

Habitat

Freshwater (Lake), Aquatic, rocky shorelines

Diet & Nutrition

Herbivore, primarily feeds on aufwuch (algae and micro-organisms) scraped from rocks, requires high-fiber plant-based diet in captivity to prevent bloat.

Lifespan & Health

5 to 8 years in captivity, susceptible to Malawi/Tanganyika bloat if fed improper high-protein diets, predated by larger piscivorous fish in the wild.

Special Characteristics

Juveniles look completely different from adults, featuring a black body covered in bright yellow-white spots, transitioning to the adult coloration as they mature.

Ecological Information

Primary consumer in the rocky littoral zone of Lake Tanganyika, plays an important role in controlling algae growth on rock surfaces.

Identified on 8/20/2026
Yellow-tail Tropheus - Tropheus duboisi | Animal Identifier