Yellow Fin Mloto (Otopharynx Tetraspilus
 
The Yellow Fin Mloto is a stunning Haplochromine cichlid from Lake Malawi, admired for its metallic blue body and striking yellow fins. Unlike the more aggressive Mbuna species, this fish is relatively peaceful, making it an ideal choice for mixed Hap and Peacock aquariums. Its graceful swimming and brilliant coloration add vibrant contrast to any Malawi setup.
 
Scientific Classification
Scientific Name: Otopharynx tetraspilus
Common Name: Yellow Fin Mloto
Family: Cichlidae
Origin: Lake Malawi, Africa
Adult Size: Up to 15 cm (6 inches)
Lifespan: 6–10 years
 
Appearance
Males develop a bright, iridescent blue body complemented by deep yellow fins and faint vertical bars across the flanks. Females and juveniles are silver-grey, lacking the males’ intense coloration. When displaying dominance or during breeding, males intensify their colors dramatically, showing off their golden-yellow fin edges and glowing blue faces.
 
Behavior & Temperament
Generally peaceful for a Malawi cichlid, the Yellow Fin Mloto can coexist with other non-aggressive Haps and Peacocks (Aulonocara species). Males may become territorial during breeding but are not overly aggressive. It’s best to keep one male with several females to prevent excessive harassment.
 
Tank Requirements
Minimum Tank Size: 250 liters (65 gallons)
Temperature: 24–28°C (75–82°F)
pH Range: 7.6–8.6
Water Hardness: 10–25 dGH
Substrate: Fine sand or crushed coral to maintain alkalinity
Lighting: Moderate to bright lighting enhances coloration
Décor: Provide rocky caves, scattered stones, and open swimming areas typical of Lake Malawi’s rocky-sandy biotopes
 
Diet
The Yellow Fin Mloto is a carnivorous omnivore. In the wild, it feeds on small invertebrates and plankton. In captivity, provide a balanced diet of:
High-quality cichlid pellets or flakes
Frozen or live foods (brine shrimp, krill, mysis shrimp)
Occasional spirulina-based foods for digestion and color enhancement
Avoid high-fat or mammalian proteins to prevent digestive issues.
 
Breeding
This species is a maternal mouthbrooder.
Spawning: Males establish territories on flat rocks or sandy depressions.
Courtship: The male’s colors intensify as he displays to females.
Brooding: Females carry eggs in their mouths for about 3–4 weeks until fry are ready to swim freely.
Fry Care: Once released, feed them crushed flakes or newly hatched brine shrimp.
 
Care Sheet
Tank Size: 250L+
Temperature: 24–28°C
pH: 7.6–8.6
Hardness: 10–25 dGH
Diet: Carnivore/omnivore
Temperament: Peaceful to mildly territorial
Breeding: Maternal mouthbrooder