Saltwater Aquarist

African Jewelfish

(Hemichromis bimaculatus)

African Jewelfish (Hemichromis bimaculatus) in a freshwater aquarium

Species Description…

Scientific Name: Hemichromis bimaculatus
Common Name: African Jewelfish
Species Group: Cichlid
Tank Type: Species-only
Care Level: Intermediate
Temperament: Aggressive
Diet Type: Omnivore
Role in Aquarium: Showpiece Fish
Max Fish Length: 6 (inches)
Min Aquarium Size: 29 (gallons)
Native Range: West Africa, from southern Guinea to central Liberia, in small streams and canals.
Min Temperature: 72°F
Max Temperature: 82°F
Min pH: 6.0
Max pH: 7.8
Min GH: 4 dGH
Max GH: 18 dGH
Min Group Size:
Breeding: Easy
Lifespan: years

Overview

  • The African Jewelfish (Hemichromis bimaculatus), also sold as the jewel cichlid, is a colorful West African cichlid that turns brilliant red when breeding.
  • Found in small streams and canals along Africa’s west coast, from southern Guinea to central Liberia.
  • Grows to about 6 in (15 cm) standard length.
  • Often sold as a community fish, but it is territorial and not a good choice for beginners or general community tanks.

Feeding

  • Eats nearly anything offered, including flakes, pellets and frozen foods.
  • Live foods help bring out its best color.
  • Add vegetable matter such as spirulina flake or blanched spinach.

Habitat

  • Provide plenty of hiding places: clay pots, rock caves, driftwood and dense planting.
  • It digs, so use sturdy, well-rooted or potted plants.
  • Water: 72–82°F (22–28°C), pH 6.0–7.8, GH 4–18.

Fish Care

  • A tank of at least 48 × 12 in (120 × 30 cm) base, about 29 gallons (108 liters), is the minimum for a pair.
  • Hiding places help spread out aggression and give weaker fish somewhere to retreat.

Compatibility

  • Best kept as a pair in a species tank.
  • In a large tank it can live with robust fish such as Congo tetras, Synodontis catfish, plecos and other sturdy African cichlids like Steatocranus.

Aquarium Behavior

  • Territorial, and very aggressive when spawning.
  • Buying an adult “pair” often ends with the weaker fish killed, so let a pair form from a group of young fish.

Breeding

  • Relatively easy. A substrate spawner that lays eggs on flat rocks.
  • Start with 5–6 juveniles and let them pair up naturally, which can take time.
  • Use a species tank of around 48 in (120 cm) with large flat rocks as spawning sites, and condition the fish on a varied diet.
  • Both parents guard the eggs and fry aggressively.