Two Stripe Lyretail Killifish (Aphyosemion bivittatum "Funge") Med- Aquarium Glaser

Aphyosemion bivittatum "Funge", also known as the Two Stripe Lyretail Killifish, is a striking and popular freshwater species among killifish enthusiasts. Here's a detailed overview of this fascinating fish, especially the "Funge" population:

 Species Overview

• Scientific Name: Aphyosemion bivittatum (subgenus Chromaphyosemion)
• Common Name: Two Stripe Lyretail Killifish
• Origin: Southeastern Nigeria and southwestern Cameroon, particularly the Funge area near the Ndian River 

 The "Funge" Population

• The Funge variant is named after a small village and swampy area in Cameroon where this population was first collected in 1980 
• This population is known for its distinctive coloration, often showing clear dark stripes on the males, which is not always present in other populations.
• The habitat is a shaded, swampy inflow area rich in vegetation, with soft, slightly acidic water (pH ~6, temperature ~24–26°C) 

Physical Traits

• Size: Typically 5 cm, but can reach up to 9 cm including fin extensions 
• Coloration: Males are more colorful with elongated fins and vibrant patterns. The Funge population often displays yellow/orange unpaired fin extensions and a vertical bar or two spots in the caudal fin

Breeding

• Spawning: Adhesive spawners; eggs are laid on fine plants or spawning mops.
• Incubation: Eggs can be incubated in damp peat for 14–21 days before being wetted to hatch. This method improves hatch rates compared to water incubation .
• Fry Development: Fry hatch at about 5.5 mm and begin showing stripes and sexual dimorphism within weeks 

Aquarium Care

• Tank Setup: Soft, slightly acidic water with dense planting and floating plants. Peat filtration is recommended 
• Diet: Carnivorous—enjoys live/frozen foods like mosquito larvae, daphnia, and brine shrimp 
• Behavior: Peaceful but can be shy; best kept in species tanks or with other calm fish.