TANGANYIKAN GOBIES (Eretmodus, Tanganicodus)

Description:
Tanganyikan gobies, belonging to the genera Eretmodus and Tanganicodus, are unique cichlids from Lake Tanganyika that closely resemble marine gobies in both appearance and behavior. They have elongated bodies, blunt faces, and fused pelvic fins that allow them to perch on rocks in strong currents. These fish are highly specialized algae grazers and are best known for their fascinating behavior, constant grazing, and pair bonding. Their subtle coloration and natural behavior make them a favorite among advanced Tanganyikan enthusiasts.

Care Guide:

• Tank Size: Minimum 30 gallons for a pair; larger tanks recommended for groups or community setups

• Water Parameters:

  • pH: 8.0–9.0

  • Temperature: 24–27°C (75–81°F)

  • Hardness: High (Lake Tanganyika conditions)

• Habitat:

  • Rocky setup with flat stones and strong water flow

  • Sandy or fine gravel substrate

  • Excellent oxygenation and pristine water quality are essential

• Diet:

  • Primarily herbivorous

  • Feed high-quality spirulina flakes or pellets, algae-based foods, and occasional vegetable matter

  • Avoid high-protein or fatty foods

• Behavior:

  • Generally peaceful but territorial toward their own kind

  • Best kept as bonded pairs

  • Compatible with calm Tanganyikan species such as julidochromis, shell dwellers, and cyprichromis

• Breeding:

  • Biparental mouthbrooders

  • Pairs form strong bonds and both parents participate in brooding

  • Fry can be raised on finely crushed spirulina-based foods

Care Level: Intermediate to advanced due to dietary and water quality requirements.